I too want a re-print of this module, the only ones available online are $150.00-ish on amazon or ebay.
Charge more for them if you have to, I'd gladly pay more for them if it would cover the printing costs of a small print run. Just not $80-$160 that people online want for the out of print ones like volumes 1 and 3.
Even better, recompile them all into a single campaign book, update to PFRPG rules and sell me that. I'd buy it without hesitation. :P