You think that's good - check out this guy's F4U 1/72(!!) scale resin R2800 with added details - he scratch built the wiring harness and pushrods...
Next time I'll be ordering the engine sooner, so that I won't have to wait for weeks.
We were just talking about the Viggen on Saturday. AFAIK, it's the only jet fighter that can reverse like that (except the Harrier of course). It is one of my favorite planes.