Hi,
I have a Dickey. Some of the parts are the same as Sportsman, but not all. Dickey's are home made so put together a little differently. Dickey's sight does have a good screen to order parts from and if you call they are always real helpful and nice. I have great hatch rates with it to. I have had it for 5yrs with no problems.
I don't think so, I mean the wafers would probably interchange, and you could probably use the humidity system with either. But they are not the same size and have different controls.