Of all the crazy stuff I have and have had- I have yet to scratch my .17 itch. I always find some stoopid reason to talk myself out of it- such as being broke, needing to get a smaller cleaning rod, already up to my ears in .22's of different sorts, etc.
I've never tinkered with a Henry bolt, but based on the CZ's I have- I gotta pitch my vote that way.
Sooner or later, someone's gonna ask what you want it for- might as well tell us now. I don't know if there's much difference in price... not that it would matter to me as I've been itching for one for several years now.