Hmmm... I'm skeptical that your missing monitor modes are due to your Agnus chip. I suppose its cheap enough to upgrade it. I don't really see the big deal though. ECS isn't really that different from OCS... not even remotely the improvement AGA is over OCS/ECS.
With the 1200 I have now having a good accelerator with plenty of RAM, an IDE splitter and a flicker fixer, I'm kinda wondering if there's even really a need to keep the 2000 around haha.
The 2630 needs a daughterboard for RAM? Wow, that sucks. Both the accelerators I've had on my 2000 had SIMM slots right on the board.