fitting a 6.5 v8 turbo to a 2.8

my 2.8 is a little asthmatic to say the least anyhow ive got a good v8 6.5 chev turbo engine here and can certainly make it fit.

is there an adaptor to the 2.8 box or do i find a zd30 box??

as the td42 is very scarce here.

alternatively is there a better gearbox i could use?

I can get propshafts altered and weld on engine mounts.

i see theres a good site from poland www.karlowicz4x4.pl which do conversions.

any more info would be appreciated. Thanks