Rosalind, while I'm sure the bee vac is a nice thing, don't let not having one keep you from doing removals. i have not gotten around to getting/making one yet. don't recall seeing to many vacs JP's videos either.
if you want to do removals and don't have a contractor to work with, just charge less and make it clear that you don't do repair. most people are fine with that. also, be choosy about your first jobs. it's tough work and you'll want to get your feet wet with some easier jobs.