http://www.everdrive.com/skus/AA/5001663-1999-PORSCHE-BOXSTER-Engine.htm
Quite by accident, I found the site above, which lists a used Box engine with 3 yr warrranty for $6400 shipping included.
What was equally interesting to me was that the same site lists an engine for a Lexus 4.0 V* at $1200.
Now I have never heard of a Lexus V8 pooping out but the difference above just seems mind blowing to me.
Imagine if you could buy an engine for your Box for $1200. Would make that 1998 Boxster selling down the street for $8500 look pretty good, no?
PS-These guys sell Nissan 300ZX engines for about $1600.