then a mk3 with a turbo and 3ltrs of fun should be sweet
86-92 7mgte.. ma70 supra.. 230hp @ the crank.. (make sure it has the turbo on the side hehe... in the US 86's didn't come turbo unless someone did a swap) only thing is 7mgte's love their head gaskets... so save up for arp head studs and a metal head gasket for when you blow it and you should be fine after that
you can get one i believe anywhere from $1000-4000 depending on condition
mk4's? well i'm sure someone that knows more about them than me can tell ya bout those