Symbi, what's the chances of you being able to ink the lines out? if you did that you could scan it in then live trace it into Illustrator.
if you didnt want to ink it though, you could still scan it in (as is) and use the pen tool in illustrator to trace everything manually into vector i.e
Yours would obviously have more of a hand drawn look but you catch my drift. Maybe half an hours work I rec.