IMO you would be better served to get the CZ, and for a few bucks more I would look for a Match chamber model. Especially 'used' to keep close to your $750 budget.
I have a CZ-VMTR and a Savage B22-FV (SR is virtually useless on heavy barrels in Can't-ada) and although I have extensively modded my Savage it is WAAAY LES Accurate than the VMTR. Of course, the Savage cost ca 1/3 $$ and it Does still shoot 3/4" groups at 50 with most any ammo, so it's fairly accurate. A 3/4" group is pretty small when considered vs a 10/22 getting 1"+ groups for the same Price.
Used rifles are often a great bargain, IF they are NOT being sold for Accuracy Reasons.
PS - As IDCAY said above, changing barrels is a MINOR issue since most barrels are not easily changed.