I usually refer people to Nigel Calder's Boatowner's Mechanical and
Electrical Manual for all mechanical and electrical stuff -- in this
case there's a diagram and a couple of paragraphs.

I have the Nigel Calder book and have almost committed it to memory.
That is what caused me to want an isolation transformer in the first
place.

This is not a bad little piece on the subject:
http://www.smpstech.com/qa/qa0002.htm

Yes, it does give some good information.

This has more than any ordinary mortal needs to know, but a number of
details can be picked out if you're strong enough to ingnore the heavy
math.
http://www.du.edu/~jcalvert/tech/transfor.htm

Wow! "Ask and ye shall receive." Thanks. I will reread this
material until I think that I understand most of it. If I can do
that, I doubt that there will be much about transformers that I will
not know.

Aside from actually connecting the thing, the only other issue is
sizing. Generally, if you plug into a standard 30A 120V shore outlet,
you'll want a 3.6kw transformer (30x120 ~=~ 3.6kw).

The smallest isolation transformer made by Charles Industries,
recommended in the next post, just happens to be their 3.6kw
transformer. Looks like a good lead.

Thank you very much for all your help.

Lee Huddleston
s/v Truelove