Just a tip for RP:
If you try to open any of the stack doors on the second level of the vault in Vault City and have Marcus in your party (which is possible after being the Captain), the door should not resist whatever your strength is.
Well done, I didn't give you many chances when I read your reports about the turrets from SAD or about travelling with caravans.
Could you, please, put your stats, skills, ... here?
There is a solution, with a stupid character you don't need the Parts. I don't remember exactly the way how to do it but you can find it in Pers Walkthrough. You just need to take a dose of psycho.
Good luck.
So called "too many items bug" had never happened to me and I don't know anything (except what I have read somewhere) about it. But the missing skilldex button is something I cant complete the game without. I am completely sure that this happens to me always after reading the holodiscs from MB...