i think thats on the expensive side.
If the engine is in good shape I don't think you got hurt at that price. While you will have a fair amount of work to make it a function GT installation it would seem to me that the results will make it all well worth the expense and effort. I'm not ready to commit yet to purchasing an engine (I first need to locate a particular make / model of GT with blown engine) I will certainly keep your suggestions regarding engine sources in mind. I've never checked but I think I need to research to find out if there is a business that services reefers around here.