Might be heaps of competition, but there aren't heaps of cars anymore! I'd easily get the following:

Complete running Z prefixed 308TH pattern, fan to flexplate - easy $750, possibly moe just depends on how good it is.
Power steer conversion with pulley, bracket, spacers, bolts etc - easy $350.
3.08 LSD, pull it apart and sell the centre and gears on Ebay for $350.
TH400, even not working as long as the case isn't cracked are worth $250.
Set of 4 x 6" HQ-HZ rims with tyres - $200
Front seats for reco - $150.
HZ cabin harness, all complete - $100.
HZ quad headlight harness - $75.
Complete quad headlight front, with quartz lights, grille, surrounds, blinkers and bar all in OK condition but some rust - $300.

Plus heaps more stuff you could easily stick on Ebay and sell like console. A good set of complete HZ Premier stainless in reasonable condition would fetch $250, probably more if sold in pieces. The over-riders would sell for $200 for the set too.
And if any of the panels are still good, like front doors or even rear sedan doors, Gene you know how hard these are to find.

She's definitely worth it as a wrecker, even better if you wanted good bits for a resto on a HZ of some sort.