Does the AROS ROM replacement have to be the same size as the orginal kickstart for the use of the kick.rom in E-UAE/UAE? If it doesn't, it's not an issue that I can see for the bounty. We're just wanting E-UAE/UAE to be happy and boot is all so it can run most apps.
And then integrate the now totally free Amiga IP free E-UAE/UAE into x86 AROS to get the much-fabled 680x0 compatability enhancer for old Amiga programs? (Much like how OSX can launch programs in an OS9-type environment) That would make this is a very interesting bounty. :-)