you luck dog. What a deal. There are only 3 bolts, and one nut needed to attach to the frame. You probably could buy those from a hardware store. The Front attachement plate is also needed.
http://www.xtracycle.com/front-attachme ... -p-16.html
If you have questions either New Dharma or myself probably could help. The re is a forum at Xtracycle also that could be of help
here is the owners manual
http://www.xtracycle.com/media/manual.pdf
edit----2 special nuts needed Xtracycle might sell you a "build kit" so you have the cables, bolts nuts and other items. since you saved $$ That would be the wisest choice. They aren't too far away from you either.