You've basically got everything but a Power Monster scsi to cf adapter for the hd, but you might do well to get hold of the software utility Maxima, which allows for RAM doubling and a RAM disk. The RAM disk will have plenty of room for your system and a selection of applications if you stick with 7.1 and avoid 7.5.anything or above. Very fast way to run a 280c. I also recommend perseverance with the keyboard, i.e., keep thumping and it improves with use.

I used to use a 270c and it was also a great machine. Preferred it to the 280c because of better battery life -- the 040 is more thirsty than the 030 with its superb power management features.

Maybe an Apple printer, cabling, etc.?