Arena type battle with cards/dice. Player Stats?

Ok... I will try to keep this shorter and not include erroneous info.

So my game... lets call it "The Gate" for now to make things easier. To help visualize, the theme is like Spawn meets the game Darksiders. It uses upgradeable miniatures in a small board skirmish. One player battles another, or in individual battles on the same board, or cooperative, and even all of them together in one huge battle. To help you all out now... imagine everything in symmetrical shapes.

I have an interactive background with "off time" between games and a system for economy which is basically rewarding players after a success but with choices.

I have a campaign set up to battle through. There will be 6 players and *at least* 12 NPC to fight.

Now down to the nitty gritty. I am using cards for the players, starting stats, and to keep score for the player. I went the route of not doing pen and paper, you will see why later. These profile cards are an integral part to the game itself. The player card is basically a large square... lets say 2x2 (not sure about actual size). then some 1x2 size cards on the sides, with 1x1 cards on the corners. I will try to attach a pic in my next post if my scanner will work... :(

So 1x2 cards are equipment and the 1x1 cards are for special abilities. Now comes the issues...

My stats and body parts are: (with the locations on the card below)
1. attack/left arm.......1..2..3
2. soul/head...............4..5..6
3. defense/right arm...7..8..9
4. demonic/left weapon
5. level/torso
6. angelic/right weapon
7. critical/left leg
8. endurance/groin
9. agility/right leg

1,4,7 being mainly demonic skills. 3,6,9 mainly angelic. 2,5,8 being variables. 4 and 6 teeter totter, bother starting at 5 and being able to allocate to one side or the other to use various skills. So I basically have a grid of stats that can go back and forth like this: (on a scale of 1-12 with 9 D12 dice)

+....-....+
+/-.set.+/-
+....-....+

buffs will add to them and certain attacks and skills, or will take away. This coincides with the body parts (...I am thinking right now, but am having issues with this!)

AI cards and Hit location cards for the enemy, which takes numbers from the stat cards to determine number of dice and what numbers to hit on.

My issues with what I have said so far:
1. I have starting stats, then gear that buffs, then I have "sets" of armor that grant additional buffs(colored corners of cards that line up), AND attack cards that give yet more (temporary) buffs... how many is too many? It seems a player will be able to max out their stats in one attack phase. :( I really like the mechanics of them all, i just do not want 9 D20's per player (not to mention how easy they roll). I would love D6's but will settle for D12's as 1-6 is not enough depth...

2. For my AI NPC attacks, I have a starting AI card with small buffs, then the "attack" card which has the locations off of the grid of 9 numbers that you will actually use. This is to make the attacks much more random. Having random buffs, and the sum of 3 that are randomly chosen for the Attack Strength, which also coincide with hit location. My problem is that this could make the NPC indestructible for too many turns. I love the mechanic, I just don't know if i will be able to use it for hit location AND strength, and I do not want to add a 3rd card for the attack phase.

3. My number of dice... o_O 4 dice to roll per person, and 9-11 for keeping stats. With a possible 3 players... that is at least 13 per player not including anything for the opponent. so at least 49+ dice floating around...

it is a pretty complex game. There is also AP which can be used to equip different gear, or obtain new gear mid combat for cost of endurance. AP per turn is determined from stats, which 5 AP can be turned to 1 END point to be spent. (some things have AP cost, others have Endurance)

Basically, this game is going towards being a living card game, which I do not like. I want dice! and not just for keeping track of stats/record keeping. but it is just too hard to transfer the stats to viable "hit/wound on __" numbers. If you understand this, what do YOU think I should lose. I am completely open to constructive criticism.(go easy on me)

I can clarify anything! Just let me know... it's just I have seemed to hit a wall where i just get sort of confused with the stat tree(3x3 block). It all makes sense, but the stats things is getting to me bad and hindering progress.

THANKS