[sje]

It's Freescale that owns the 68000 IP, and they don't make DIPs of any kind. Old 68000 DIPs can be had, possibly salvaged from old Macs, Amigas, etc., for about US$20 each.

Anyway, a 68000 really needs a 68551 MMU to do Linux, and even that's a little clunky. I wouldn't try it with less than a 68030 as the base chip, and that was never made in DIP form.