The Pro 1000 really doesn't have any feet, per se - other than some small rubber nubs. I just finished taking my "retired" Pro 1000 apart and it was kind of a pain. There are very few screws and it's mostly held together by plastic tabs, some of which broke when I tried prying them apart - not that I really care. However it does reinforce the fact that this printer (and the Pro 1100) likely CANNOT be repaired, which is why I just bought a new Pro 2600 (it arrived at the depot this morning and is sitting waiting to be delivered - the carrier only comes out this way on Tuesdays and Thursdays, the disadvantages of living in podunk).
I'm probably going to donate my current Pro 1000 to the local high school - assuming they could use it for their art or photography classes. The currently installed cartridges are just starting to peter out - just put a new CO and blue tank in and 9 of the other color cartridges are still pristine in their sealed "sacks" so there should be a fair amount of printing left in the tank, as it were.
As far as Canon support, I'm running High Sierra on my MacBook Pro and Canon shows drivers for the Pro 1000 going all the way back to OS 9! (I'm running High Sierra since it's the last Mac OS that supports the Adobe CS6 collection. I have no desire to pay Adobe a monthly stipend for the current versions of Photoshop, Illustrator, InDesign, etc.) There's also nothing in the newer versions that I need.
When I get a chance I'll take a closer look at the Pro 1000 re: the feet . . .