I haven't installed one in a 3000 but I have internally installed one on a 600. I can say the device is small, half the size of a floppy drive, but you would have to think about possibly mounting the buttons on the front. Its easy enough to do if your handy with a soldering iron.
I used some motherboard risers to set the high. I assume in the 3000 there will be a propper floppy bay though making life easier. I have seen external box versions though so that's always an option to have it an external device.
