go to www.outerlimits4x4.com.au and search for 7mge or 5mge and you will get some results for this conversion. there is a guy called suprasurf which has completed this exact type. also try http://www.off-road.com/toyota/tech/supraswap/
the final result is an economical injected engine that provides decent enough horsepower (5mge around 150-160hp and 7mge 190-200hp) and no costs of custom bellhousings and the like. i have done a fair bit of research over the last month and this is the cheapest and most appropriate swap for me. i should get away with it for under $1000.