Ok some more details then is the trans a manual or auto? If it's a manual then not alot. 4 cylinder t-5s are cheap. I'm in need of another 1 though so if you decide it's not made out of gold pm me.
The motor depends because of the turbo and injector if you had an 86svo motor then you have a t-3 60/63 with 35pd injectors. The 88 should have 35 pds injectors with the small ihi turbo. I'd guess around 400 or so depnding could be higher or lower.