ok, I got a bone to pick with HP and stats.

HP can be very easily eliminated. Back in D&D it was defined as skill in avoiding blows, luck, shear ability to withstand blows... Make your person have Stamina: in fights, Stamina drains quite quickly. Armor already has weight for an inventory, so make that contribute to stamina loss. You don''t need any crazy "armor skill," all it has is different weights-A need for strength and stamina! There still needs to be some method of storing information about how the Player is doing...such as the "localized damage" that was discussed earlier. That needs to store bleeding and dismembering information localized to specific parts...
This also accounts for other things aswell: Magic-Users are weak, therefore can''t wear armor. Theifs needs speed, there fore can''t wear heavy armor. etc...

My other problem is: Class and Skills/stats.
Besides basic things like Strength, Stamina, Inteligence, Wisdom, Dexterity, Charisma, and constitution; all of the things you''ve been refering to as "stats" that arn''t one of the above are "skills." Magic skill, Weapon skill, NO armor skill... Get rid of class and jsut have a gigantic web of skills that the player can choose from, creating his/her own "class." start out broad and go specific: a character decides he wants to be like a theif so: he pursues illsusion/distraction (what magicians use irl, the ones on tv). He gains experience (experience localized to THAT skill ONLY, by USE of that skill) and He goes for another skill that branches off from that: pickpocketing. Or, he could have a change of heart and go for Cantrip spells. Or, Weapon use. or, clerical spell casting. or, _blacksmithing_. or Politics. (run for mayor anyone?)

this is probably confusing typed out...it makes sense in my head...