Well, you created a nice bastard there etabeta, a machine with an 68020 and AGA, using the 68000 kickstart from an A500 wink

The real A1200 used the following ROMs:

Kickstart 3.0: 391523-01.u6a and 391524-01.u6b
Kickstart 3.1: 391773-01.u6a and 391774-01.u6b