This was my Jurassic:
http://www.rcuniverse.com/forum/fb.asp?m=10740798
It was built from the original .pdf files. A lot of work, but a very enjoyable plane.
Any 80 to 120 size engine will do. The intakes are maybe a bit on the small side. I have seen many with "cheater holes" on the back.
I did not alter any of the aerodynamic layout, the handling is uncritical. Incidence angles are missing from the drawings. Wing is set to 0 deg, and tail to -0.5 to -1 deg.
regards
Lars