Haha, that beginner temple in Fallout 2 was quite a bitch, but once you get the hang of it you can breeze through it.
Anyway, if anyone is interested, the last time I played FO2 I used the following build. It's a sniper build and was pretty decent.
Traits: Gifted, Finesse (gifted for the extra stat points, Finesse for the increased criticals)
ST 5, PE 9, EN 4, CH 1, IN 10, AG 10, LK 9.
That's if I remember the build correctly. I might be mistaken. Either way, it shouldn't be far off from the above. The three things that are critical in this build is strength (has to be 5 in order to use snipers), perception (make it pretty high) and agility. I usually prioritize Intelligence as well for solving quests, seeing as you leave charisma low which means you can't talk your way through quests. I was able to do most of the content with a high Int, so it should be good for you.
Just note, the early game is a bit difficult with this build, but the payoff is massive from mid to late game. You start doing insane damage around level 12-15. The build works in Fallout 1 as well.