don't you think you're asking too much from your crew ?
" I just don´t find it logical to pay for Non-professional musicians. Specialy if I don´t have the money to spare."
why is that ? work is work amateur or pro, if you're not willing to pay for their services you simply have no right to complain.
it sounds as if you don't even value their help at all ... (I may have misinterpreted your statement of course) but under such conditions why should they value working with you ? on one hand you want to run your project like a very serious act (which is cool) but on the other you don't have the infrastructure to materialize it ... asking a hired musician to deliver real things (like his time and work) in exchange for unreal real things (future gigs, rock star fantasy trips) is extremely unfair ...
you have to offer something more than a sucker's deal to get what you want,
pay with bananas and you'll hire lots of monkeys
