Solo'ing the Hard Abyss with a Hunter doesn't require the Don't Touch Me gauntlets, but it will be a major test of your stealth skills if you don't have them. Once you have Don't Touch Me though, it's almost trivial so long as you utilize everything from your bag of tricks.
I don't think it's worth deleting a character just to get an Arc Pulse rifle, but if you've always wanted a Hunter then go for it.
Which pulse rifle is it?