Looking for an incubator for classroom Hatch

I am pretty sure this is the wrong forum, but I don't think people stroll through the wanted to buy section much. Forgive my request if this bothers you.

I am a 5th grade science teacher in a Title I inner-city school here in Miami. I really want to have the students experience the incubation process before they graduate and move on to 6th grade. The students are excited about this project and I know it will be one they aren't likely to soon forget. We need an incubator though and would like something other than a bulky hovabator. Perhaps brinsea eco 20. We are raising the money to buy the incubator and the hatching eggs; however will likely fall short of the price of a new one. If you are willing to work out a deal then maybe we can afford an turning cradle so they can continue turning during the weekends. Thanks in advance for your support.