If you are really interested in selling so models, you should not:

• Give a vouch copy for some trusted people: Send free copies to them and after they check that everything works well and legally you can sell or promote it.
  
• Make it for free for the first 50 members of your choice: You can offer the form for several members.

 why do you want to promote your special model if you are profitable and you are a good amount of money and is reliable, not the best to make a loan and then pay part of the amounts you win?