I come across this while surfing the web.
The guys swap 1997 toyota 80 series with 2008 V8 moster and claims that there is no modification to the frame.
Same engine with the same gear box to mach.
This could be a good build up as the engines+ gear box can be very chaeap here and many garages can do it.
They did not mentioned about wiring and engine management but Man I would like to see that done here.
Chech this web site. http://www.sleeoffroad.com (project vehicles)