JB and Q,
Thank you again for taking the time to think it over and reply!
JB, your reply is well thought out.
As you suspect, it is not insulated.
The 5000 btu a/c does a great job if the trailer is in a bit of shade, and will keep up if in the sun, but it doesn't cycle much...
The biggest problem with this whole situation is me...
I'm cheap.
I can't see spending over a thousand dollars for a generator to run the a/c for two-three nights a year.
I didn't have a problem spending more than 6 grand for parts to build the trailer, but it went for something that will last me 50+ years.
Guess on the next trailer I'll have to break down and build a generator in like the big boys do.
I've been reading with interest all the threads about running a 5000 on a 1000, and it seems right on the edge...
It works for some, but it sounds like a 1500-2000 would be a safer bet.
I run a 750 in my truck too, for remote power needs.
I could justify the larger inverter, and then use it in the old car as well.
I understand the economic reasons for 6 volt systems being left in the cold, was just hoping there might be some electronic doo-dad that would make it all work.
Q,
Your engine/alternator idea works, but by the time it was built, it would be as large or larger than a compact generator.
Part of the issue here is weight and space.
The roadster has a small trunk, so the power plant has to be small.
I have a 2500 and 6000 generator now, but they are way too big to put in the trunk...and noisy!
The second alternator idea is a good one, and holds promise.
Just have to decide if all that work is really warranted for a few nights a year.
Thank you for your replies!
Rob
Waiting for "someday" will leave you on your deathbed wondering why you didn't just rearrange your priorities and enjoy the time you had, instead of waiting for a "better" time to come along...