Hi there,
skaman, how exactly does the Famicom dumper work? Does it uses scripts like the Kazzo or is it completely different and has all mappers in the code and auto detects them? Or does one have to select those manually as well? I hope to see more progress of that done (NES slot added for example). An all in one cart reader (if sanni plans to implement it once your testing is done) would be superior. 
P.S. If anyone needs adapters for sanni's cart reader, write me a PM. I have SD cart and 8bit Flash adapter left. 4 of each.