Does anyone have experience building hot propagation beds both wet (electric leaf & mister) & dry hot bed? however its built i want it to last; I'm kinda sick of all the cheap through away junk sold now. The ones we had at college were cast concrete, a tad heavy & brittle to be moving. I have two electric leaves finished & working & a pressure pump from the curbside cleanup that will be 12V by the end of the weekend. now i just need the beds & a 12V solenoid.