I have no hw to run it on (doesn't go in a C-1?).
There is a port of the Minimig core for the C-One (you need the extender board, though) - there's a source snapshot on this page: http://c64upgra.de/c-one/s_download.htm
BonusQ: Didn't I read about an AGA implementation in the works? Any status or pointers for that?
The FPGA Replay board apparently has a robust AGA implementation - but source for that hasn't (as far as I'm aware) been released yet.
I've taken some baby steps in the direction of AGA functionality myself, using an Altera DE1 board - details here: http://retroramblings.net/?p=127