Kaeldc,
Try
www.fourpi.com. I have one of these. It is an ARC (almost ready to cover). It is very well made. If you have problems with the website it has an 80" wingspan and should come out at about 10 to 12 pounds. A 1.5 c.i. 4 stroke or a 20 to 25 cc gas engine is what is recommended. The wing is built for fixed gear, however the instructions show how to modify it for retracts.
James