Yo.
Yeah, without interest&motivation LD would be near impossible, unless your friend is one of those people who can LD naturally, in which case he would not had troubles in first place i suppose.
So yeah, get his interest&motivation going up and considering dream recall... hmmm... I don't have that much great dream recall by myself but i still can remember my WILDs clearly, so maybe they are easier to remember? Would suggest giving WILDing a try in that case, though it might be hard for some people.
Good luck.