Firstly, the VR4 is from an AUTO, ie less power, smaller injectors.
Secondly, remember to add about $800 for an Engineer's certificate.
Add another $1000 min for tread, worth about $1500 max with new tread
Radiator recore, about $250,
Intercooler NEW Hybrid $550 + $200 for 3" piping plus silicone hose and bits.
Add another $500 to get it working plus tidy up little things here and there.
Dualsport EMS worth about $800 2nd hand, auto VR4 about $1400 max without wiring, 18" wheels about $800 if your lucky, springs maybe $300, the car without engine probably and other bits $600 if in really good condition ?? So about $4000 max, but then again you could buy the cordia (In the Automotive section here) with an Evo 1 engine and 17" wheels with tread running for about the same amount.
I would say give him your telstar, clear the debt and give him something on top, work out a fair price between you both, because in cases where the car isn't running you generally always get a discount over the value of it to bring it back up to spec.
Think about it as a whole, and every little thing so that when you do do the swap both of you are happy.
Then sell your other cordia once you have it running
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