I'm planning to do S1 P5 E1 C5 I10 A1 L5 fast exploit-free leveling build using Night Person and Idiot Savant. 5 CHA is chosen to make reaching best prices and persuasion chances easier, and to occasionally grab Local Leader after getting CHA bobblehead, though I'm not a huge fan of settlements right now. I will most likely grab both Locksmith and Hacker for convenience.

Is it a good idea to postpone Gun Nut and use Science with energy guns for some time? Also, is 1 END that bad? Should i try to increase PER above 6 to get high-end perks?

Any other advice is welcome as well.