How will it be a sight worse than L2 man?
The teams promoted to L2 from the regional leagues are both in the play offs for promotion to the Championship and League 1 at the moment, having finished 1st and 2nd in L2 last season. Suggests that the better sides in the regional league are, over the course of an entire season, better footballing outfits than most of the dross in L1 and L2 - that wouldn't be the case if the skullduggery was significantly worse in LL and HL.
Personally, I wouldn't be surprised if Cove, Edinburgh City, Brora and Kelty are all playing in Championship and potentially one or two in the SPL five or six seasons from now. The tricky part is the initial play-off, as that's more of a lottery, but once they get into the league structure they'll work their way through the divisions no problem.