Nice setup.
1. Yes, as long as you have the correct connectors. I've only ever used the serial side with my Amigas, but I guess the parallel would work with correct software.
2. I don't know of a page, but use some sharp angle cutters and just cut the legs off. Then you can desolder them from the board. (Or, if you're going to change to a different battery, you can just solder to the stubs).
BTW, if you replace the Retina, make sure to get a Cybervision 64, not 64/3D as it lacks the passthrough.
