people tend to cut off the connectors that they don't use such as EGR, boost solenoid, MAF, fans, etc...
and ya I'm not crazy, plenty of people have decent harnesses for $150 that don't run a chop shop for TRs and look to make ridiculous profits from 25 year old parts...$325 for a used harness? put down the crack pipe dude...I've been around these cars long enough to know what stock parts are worth...$75 for a set of STOCK injectors? wow I can get aftermarket larger injectors for that price...most people throw away stock injectors