My Legal Eagle XL build/fly site:
http://eaglexl-58.com
The webinar I presented for the EAA on the Legal Eagle XL:
http://www.eaavideo.org/video.aspx?v=2634527737001
My XL Youtube channel:
http://www.youtube.com/user/EagleXL58?feature=mhee
That should get your research off to a good start.