i want my 89 supra na to be turbo

well guys i have a 89 supra na but i want to make to a turbo but i dont want to buy a 7mgte i replace the head gasket is metal 1.5 i think or 1.2 well and now i have 200 psi on my cylinder all 6 of them and i was thinking can i put a turbo or my 7mge what do i need to do so it can work i need your help guys thank you