800 to put in my 87 turbo mk3

[boner1115]

what if i got liek a boost controller and like a new lexus mass airflow meter, and possibly a bigger turbo. becosue i found alot bigger turbos on ebay. this is my current plan but i dunno if i should do it, like will it be bad for my car, my car runns really nice and there are no clunkd or anything like that. my othere option was i was thinking about buy a 1jz twin turbo motor for 1100 bucks, but i dont know what else ill need to do the swap.