Body Mics for production of Tick, Tick...BOOM

Hi, I am the TD for a production of tick, tick...BOOM by Johnathon Larson (the guy who wrote Rent) which will be on at Theatreworks in late May-early June. I am looking for the most economical body mic systems I can get for the week run of the show. They are all so expensive! Our budget isn't tiny but most quotes are like $1100 just for three body mics for a week! Anyone have any ideas?

Yes I know what you are thinking, just get boundary mics or overheads istead of wireless bodypack/head mic systems...the director and I both think this is a bad idea as there is a huge band onstage with the performers.

Thanks for your help!!!

Cheers,

Scott