If you have extra work that needs doing, I think that I have the right kind of skills for this sort of thing, and I work for a lot less than $500/hour. I've already learned through hard-earned experience that I'm pretty terrible at running a business, however, so I'm not too keen to copy your business plan and implement it myself. It seems like you've got a great niche though and I don't doubt there will continue to be plenty of messes to clean up, especially considering how much care and craftsmanship goes in to most production systems these days. In case my sarcasm wasn't obvious, it's my assessment that in most cases, the care and craftsmanship is entirely absent, and for entirely understandable and defensible reasons.