Sure thing

Techedge Wideband - $320 DIY or $500 prebuilt
Moates chip burner - $120

If you are OBD2, obd2 - obd1 conversion harness - $130
If you are OBD2, Socketed P28 ecu - $240

If you just need to chip the ecu, budget about $70-$90 to buy the parts needed. I could be way off on this, could be a lot less.