OK.  Looks like I'm gonna go with a rebuilt from one of the reputable
ones (Bob's/AVP/etc) on my new to me camper with the almost no oil
pressure.

Real question now is, do I do the swap myself and save the grand (and
learn a thing or 2 about this rig) or do I pay another and save the
frustration (and possibly $)

Background:

I've my fair share on major car operations under my belt.  As a kid (I'm
pushing 40 now) I had lots of time and little $.  I've pulled and
rebuilt GM, Ford, Saab, Triumph, Volkswagon (ok, it was a 75 rabbit that
needed a new head), and others.  But now my money time availability has
switched.

Question for the group.  Is this pull and replace of a rebuilt engine
something I can pull off in a few weekends, or should I simply pony up
the dough to a pro

Thanks for the input

Phil