1/2 to 3/4 page Sale advertisement for web/email

I would need a rough proof of concept before i pay. Ive been burned quite a bit with nice portfolios and shitty work. (Not saying thats you just yet). If successful in making something that POPS, i have a significant amount of work that needs done. I would like to stick with 1 designer for all of my projects I need a 1/2 to 3/4 page sale advertisement for ONLINE ONLY.....My Customer: Has a need to reach B2B companies and more importantly the contacts within those companies. We sell lists of B2B contacts which include email, direct dial phone, and up to 400 other fields of information. These are all US contacts. We have a database of 30 million US companies and 18 million US contacts. We can segment and target a list of prospects using over 40 different criteria. We offer a 100% deliver ability guarantee or we will replace or provide credit. We partner with companies like D&B, LinkedIN, Jigsaw, and a few others. Pricing: .01 per contact THIS MONTH ONLY!!! The pricing and guarantee need to be emphasized as its our biggest selling point. Were the lowest and give a guarantee!.