Book launch copy

I have just completed an eBook which has 2 editions - 99.9% identical, just different target audiences and different web sites. I need someone experienced in this type of work to do the following: 1. Re-write the Home page of the 2 web sites with compelling copy - not a long page, no more than 300 words on each. Objective: Obviously to get them to buy the book! 2. Write a good classified ad copy for each of the sites. Objective? To get them to visit the web sites I will provide to the succesful bidder: a downloadable copy of the 2 books, the location of the 2 web sites, and the USPs of the 2 books (if you don't know what a USP is without looking it up - don't bother to bid!). You must have experience of writing sales copy for web sites (and you will need to show me reference sites). Please base your price on the following criterion: expect 50% of your price on completion of the work. A further 25% when one of the books achieves 5 sales and 25% when the other book achieves 5 sales (we can agree on a mutually suitable way to monitor the sales). This is my guarantee that you will achieve the expected results for me and your price is worth the money! (I can put the whole amount in escrow if you like, to show good faith).