I am sure it will works for raiders and molerat. But remember the more things you want your char to do the worse he will be.
If you want to start with sg burster then your luck should be 1 with 3 x brd, or 10 lk with more critt, even more critt, spray and pray. But better stay with 1lk and 3 x brd.
I do not know which perks beside brds you want to pick, but for sure you need to pick at least 1 livegiver perk, because 140 hp, sucks balls.
Generally your special is very fine for the loner character, just decrease lk to 1 and at it to str and en.
Oh and if you eventually agree on 1 luck then choose trait fast shot (you will not need aimed mode anyway), it will helps you to deal with some weak enemies and to save your ammo. As with 12 ap you will be able to shoot 6 times in one turn.