You can get a rebuilt kit for a T3, in turbo shop, but you will need to get it rebuilt by a professionnal, 'cause it will need to be balance.. etc etc.. by a professionnal.
Napa have some kind of rebuilt kit for a 2.3T
It contains :
-All gasket
-Rings
-Rod Bearings
Kit # : Kit RR645
kit value: 204$(+tx)
You will have to buy Crank bearing : 40$(+tx)
Crankshaft seal(front+rear): ??$
Everything is in CAN $