I picked up a nice engine for the Camel. New in box OS FS-90. 1983 was a good year for engines. Tons of compression. With the valve header, push rods, and cam at the back and the sleeker design, it should fit quite nicely without modifying the cowl too much.
http://www.osengines.com/history/osm...1983-fs-90.jpg

Anybody with the missing copper rigging brackets problem, here's a tip. I couldn't find the Hangar 9 replacement at my LHS, but Sullivan makes something similar that works quite well.
You can see them here in this bracing kit. (Top row right below the wire)
http://www.greathobbies.com/productinfo/?prod_id=SUL546
They are sold separately though so you don't have to buy the entire kit. Comes in packages of 8, just enough. I paid $6 CND for them.
It's a bit easier to do this than the method Mike Buzzeo mentioned in his review.