Thanks to all for the feedback. Based on the inputs I think I am going to pass on Masdevallias for the time being. I'm hoping somewhere down the line some enterprising individual or company will offer commercially made units suited for cool species orchids, maybe some company like the one that makes the Grand Cayman. For now I'll pass. Regards
I am about to launch into an experiment in cooling a wardian case of sorts. That is I have a 150 gallon fish tank that I am going to slap a lid on, and try to cool. My apartment gets to 30c in the day during the hot season.
I am going to try Martin's idea using the computer water radiator to cool the case. My twist is to use an aquarium chiller to chill the water as it is thermostatically controlled.
Its not going to be pretty, but my goal is to preserve 4 lepanthes/flasks that I have on order until I leave Thailand for home next year.
I am going post pics and comments as I go in a new thread... Stay tuned. I am off to shop for parts as of the weekend.