RE:The next person to get the van will have a real headache trying to

> fathom all the wiring and plumbing. To say nothing of oneself getting
> confused if you haven't made copious notes over the years.

All wiring changes and circuits documented and tagged, I don't trust my
memry.

Still in all, keep up the 'Rube Goldberg'  extras as I really want to
> inspect your Van one day, it sounds like a marvel of ingenuity.

Not really Rube Goldberg but standard wiring for such a setup.  But now
simpler and more straight forward as far as the wiring for the aux battery
is concerned.  Nothing really fancy about it at all.