There's two lots of '34 DeSoto Airflow coupe parts on eBay right now:
front and rear axles
engine and transmission

There's a little confusion because the seller has them listed as Chrysler and 6 cylinder. I've exchanged e-mails with him, quote "The Block # is S2 2548. It is a 6 cylinder and the head is aluminum. Hope this helps,"
The parts are in Wallingford, Conneticut and he doesn't want to ship them, but he's also only asking $25 each so it would be worth someone in the club going and picking them up.
-John

John, those items were from a '36, and being from Massachusetts, and being able to purchase all for $50.00, well I couldn't pass them up. I have two '35 Sg's, and I realize that the motor internals may be slightly different, and I think axles are slightly longer, I still couldn't pass them up.

That's great news, I'm glad someone with an Airflow picked them up for such a good price. Even if you can't use them there will be someone from the club who does.
-John