Finally got time to read this thread, what a SAGA! We were fortunate enough to get a house far out in the country. I can shoot guns, raise chickens, horses, goats, whatever. According to county ordinance my lot can accomodate 2 livestock units. A unit is equal to a horse, 50 chickens, 2 goats, 2 cow etc. My neighbors love the chickens, more so now that I am down to one rooster.
Noticed your electrical issues. Hate to see you have a fire in your new slice of heaven, and sounds like you're living a little dangerously with those outlets/splitters and ext. cords. I'm an amateur electrician-I know enough to be dangerous. The best solution for you would be to have an electrician convert your outlets to 3 prong, GFIC protected outlets. It won't be that expensive. A dedicated circuit for your incubator and accessories would be best. Anything that powers a heater should be on a dedicated 30 amp outlet. If a $300 electric job isn't in your budget, outlets arent that hard to update yourself. buy the outlet with the GFIC trip built in, shut down power to the outlet (test with a lamp, tape the breaker closed) and just follow the directions and connect the wires to the proper poles. If you have old 2-wire cable in your wall, you will have to run a separate ground to the 3rd neutral pole. If an exterior wall it might be easier to install a ground rod outside and punch the ground wire through to inside. A better more permenant solution would be to run modern 3 phase romex to the next grounded outlet , using the old wire to pull the new through, replacing the old 2 wire junk. If you have old knob and post wiring, the whole works should be re-wired.