^^^ what turbo you have in mind? I think a GT30 might be good enough or a pair of 1jz twins.
As for the bearings, is the crank good? if so i think the gze and gte carry the same bearings so look around there was a place in POS i bought a set of bearings for my 1j.
If not buy a complete head and block , ive seen some get problems with water pump etc so you'll get some spare parts if needed
As for the diff is it a a60 supra? if so get a hilux G series diff in there
