You never know, there are a lot of them on the road, and ending up in the wrecking yards. I have heard of guys picking them up for around $500.
Got the pan back on the motor this morning before work, the only extra car pan I had, was off a 65 273 and uses the old style end seals. Well made pan though. I ended up keeping that crank seal for the TC, in the freezer for 24 hours, and had to heat up the TC. Very tight fit, even after glass beading the cover.
Will be throwing the heads back on it tomorrow morning.