Besides the OS, couldn't you instal most programs to the Cf ,just being sure to direct writes and saves to a real hard drive?
I'm thinking the program files don't change anymore than OS files so you kind of use the Cf as a big ROM.Data could be stored on an external hard drive thus keeping the heat outside the Amiga.
Maybe not as pretty as everything in one little box but might be better performance
I'm not an expert nor do I play one on TV.