Rabbit hole continues... the slant 6 is actually one of the best turbo candidates out there. Inline, offset to one side for room with intake and exhaust on the same side, very stout iron block and head, and pretty low compression.
Here's an add that was under $300 and pick up a bunch of MPG as a percentage.
https://www.allpar.com/threads/turbo...ost-1085223131