Maybe go for survival and/or repair, and go after the challenges for crafting. Prioritize speech - you can get out of a lot of fights, and even better, get XP for it.
Skills: I know you said you don't want to do locks and computers, but you'll have to for some things, so keep lockpicking and science high. (I made an exception for Benny, and raiders who attack on sight.) I'm going through a similar action myself right now - I'm trying to kill as few humans as possible.
