Here's the price breakdown I came up with.

$165 Compressor mounting kit
$150 Sanden 508 (eBay)
$56 Expansion valve, accumulator, pressure switch
$20 "K" head compressor back plate (eBay)

I haven't priced hoses yet but I'm guessing high at around $100. I also haven't decided what I'll use for refrigerant yet, between Freeze-12, ES-12a, plain 134 or go nut$ on R12. I'm leaning towards the first two though, which are fairly inexpensive and cool better than 134.

All tolled, between $500-600.

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1984 300TD Turbodiesel - 272k
- Daily Duty
1985 300D Turbodiesel - 315k
- "Recommended for competition events only"