That is very true jfetter. Although, would 30 lbs do much with this monster? Maybe it would help it "glide with style" instead of just gliding (taken from a classic movie
). Im sure you could get fans really cheap at HC. Or I've heard good things about the HET 9305. And i think they are pretty cheap at about 60 each.
If you were only going to use them for a little bit per flight, you could have small batteries. I would bet you could set up a motor fan and ESC from HC for 100 bucks per set. Batteries might only be 30 dollars per system, so thats 550-575 bucks after shipping. More then i would spend on an entire plane
but a fairly small portion of your expenses