Incubator advice

I would like to get a large incubator which will hold from 300 to 500 hen eggs. This would be like a cabinet style with auto turning ,humidity and temperature control.
Has anyone got a large incubator or know of which one would be the best that there is on the market? Ive been looking at a Brinsea Ovaeasy 380 egg incubator. Any suggestions?

Thanks Jonathan