I am in NJ and will try to help spread the word but just for the record it can be very hard to sell an engine without hearing it run. What you can do short of disassembly, is to do a cylinder leak down test. That is a sure indicator of ring/cylinder condition. You can use a fiber optic camera to inspect the cylinder walls for rust. For an engine that passes these tests, short of running; for $800 with a harness and PCM that may be a fair price.
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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "