I built my own range, it can be your's too if you can find it.
An old Zen Master once said "If your doing 'it' and 'it' ain't fun, then why are you doing 'it'?
When I am shooting, I am training. I will introduce bad mags, bad ammo, even a bad gun, just to make the training a learning experience. That does not mean I make it a torture session. 'Perfect' Practice Makes Perfect Muscle Memory. If your dieing from the heat or from chiggers and mossies your practice is not perfect. Go home, turn-up the AC and practice dry-fire indoors, thats what the TV is for, it's a training tool! Believe me if push comes to shove and you are in a swamp with chiggers and leaches sucking away on you but the bad guy is 6 feet away, you'll be as still as a stump and your muscle memory will be intact.