jimmy, i will tell you right now that that e30 isnt anything special.
there is nothing to make it an authentic HARTGE car. its just a 325ic with an 87 IS airdam, hartge wheels, hartge strut bar and possibly the skirts and wing.
but trust me; judging by the rest of the car, i dont think you'd be excited to get hit with the cost of playing catch up on maintenance.
and besides, i dont know anyone who would trade a real hartge c2.7 e30 for a 350z, the hartge C2.7 is worth near 8-9k.
and before anyone give me shit about my e30 knowledge;
http://zilvia.net/f/cars-sale/390287...ed-coiled.html
that was my former track car, and i did get paid my 5k asking price.
dont trade for the e30 vert.