Honestly, i don't think that anything labelled as 'hobbie' will ever make it as a good amiga emulator. Simply put, it's just too complex to be labelled as such. Now, if someone intends to put up full time, professional effort into it, and call it an 'hobbie' than yes maybe it's possible.
Unfortunately for emulation the Amiga architecture is full of little hardware tricks (that came out of $$ and time problems and the need to get creative) and timing intricacies ... unfortunately, to add up to it there's not much documentation out there, afair the only AGA documentation out there is hacked out and available on AMINET. Commodore went bankrupt and it never surfaced.
These types of problems only mean one thing: Reverse engeneering, and that only means one thing: Load of hardware knowledge and time.
Everything but an hobby.