Any Air Conditioning Options?

[Uber Affe]

I live in Texas...where a heater is about as useless as a third nipple.
Don't ask.
An A/C, however; is another story entirely.
You can almost bet that you will be dehydrated by the third stop light you reach and dead by the fourth.
With that said...
Any cooling options (human cooling-not engine) for a bug that doesn't delve into one of those $1200 kits? or drain power from the engine?
Something along the lines of an EberSpacher only for cold instead of hot?
I've looked into those swamp coolers and other related marine/tent/rv coolers,
but I have been told that the humidity index is too high here. That may be true of PART of the year, but not all and I've even seen folks use electric fans in their buggies. So...

Any ideas form all you smart GL'rs?

UA