I would avoid Guillows mainly because they are too fragile to cover with the coverings that we use - You'll need some experience in that area too.

How about this? It's a good challenging build, but not too difficult (certainly not as bad as a Guillows) and when you're done, you'll have a really nice plane:

http://www3.towerhobbies.com/cgi-bin...?&I=LXUJ25&P=0