FYI, If you are planning to buy a CZ 527 17 Hornet, I'd consider doing it sooner than later. I was looking at different places online that had the "Varmint" model in stock last night, decided this morning to go ahead and order another one and the top four places with the best price were already out of stock, so waiting ended up costing me another $35.
It seems every spring these little CZ 527 17 Hornets become scarce and are harder to find.
FWIW, If I already had a CZ 527 22 Hornet and wanted a 17 Hornet, I'd go with having the one you have re-barreled, fitted, and chambered with a top quality custom barrel done by a gunsmith that does a lot of small bore builds. Someone like Kevin Weaver would be my choice.