probally would work. I use a 38 quart coleman cooler and a fish submersible fish tank heater (thermostat and heater all in one neat huh) Put 3 or 4 inches of water in the bottom set temp (use a cheap digital thermometer with probe). Set some bricks or make a grate out of an old refrigerator shelf and viola incubator. I also set up my egg containers like at WWW.albeysreptiles.com works great no fail 100% success for me this year 
-----
Even if your on the right track you will get run over if you just sit there
22 leos,1.1 redtail boas,1.1 rainbow boas,1.1 cornsnakes, 1.0 tokay gecko,1.0 veiled cham, 5 dogs and a cat. Oh, can't forget Tater my parrolet.