I'm afraid your sailing in uncharted waters there my friend. Others, like yourself have gone off on this same quest……..never heard from again. But, if you can open the door, I'm sure you'll find a huge following. Unfortunatly, most propers aren't willing to do something without highly detailed plan's such as norm's. but there are 1 or 2. go here:
http://www.gbprops.com/profile.php/196He is the only one that I know of who has successfully been able to undertake the project. Personally, I think his prop doesn't look that good (although it is pritty good). But I'm sure the pictures he has can help you, and if you contact him, I'm sure you might find some plans.
good luck, I will help you if I can.