Yeah, this is what I'm thinking of doing as a bit of Googling has shown that removing the region locks is often a risky - and usually not guaranteed - procedure... Five or six years ago, I would've dedicated myself to finding a way to achieve this, but these days, DVD-based optical drives are so cheap these days that it's easier to simply buy one or more DVD-based optical drives, and configure each of them for a different region.
We're unlucky in that we have DVDs from most regions, so we'll need to buy a handful of DVD-based optical drives, but at least the models we're looking at are USB-based, so they can be moved from computer-to-computer easily...