Enemies seem fine. Haven't tested Guillofelgho or Carry Armour - but will do so later.
Flickering summons I can fix - so long as your interpolation for them is at 4x like the battle.lgp files.
Camera will need further modification by NFITC1, because there are 2 functions, not just 1. One deals with the victory camera as well - which is currently too fast. All in all though, it does seem to be very doable. It's a little pesky that so many parts rely on other parts. So you fix one thing, and another thing then goes out. But the pause method can help with the biggest issue - the magic.