The Vortex Pro-Series 1" medium-height would be ideal!
Here is a link: https://www.opticsplanet.com/v/pr30-m-vortex-pro-series-30mm-riflescope.html
Yes, all Vortex scopes are spring air rated.
On this rifle, a set of the Vortex Hunter 1" high rings would be fantastic!
The Vortex Crossfire II AO 4-12x40mm Rifle Scope will most likely need medium rings to clear the rear sight on the CZ Jaguar. I would recommend getting a higher set of scope rings for the scope you have. The guide below can help you determine what height rings you will need for your set up.
https://www.opticsplanet.com/howto/how-to-how-to-measure-scope-height-scope-ring-height.html
Yes, the Vortex Crossfire II AO 4-12x40mm Rifle Scope will work just fine on a Remington 700 chambered in 30-06.
I recommend using high rings to mount the Vortex Crossfire II AO 4-12x40mm Rifle Scope to a Mossberg Plinkster 702. The dovetail rings at the link below should work. You could use lower rings but you would also need to remove the rear sight in order for the Vortex Crossfire II AO 4-12x40mm Rifle Scope to fit.
https://www.opticsplanet.com/ncstar-scope-ring-1-ring-3-8-dovetail-high-rb27.html
If your rifle already has a base you will just need rings for the Vortex Crossfire II AO 4-12x40mm Riflescope. You can find them here. https://www.opticsplanet.com/vortex-30mm-riflescope-rings.html?_iv_tube-diameter=1-in
Low rings may work but I would recommend medium just to assure enough clearance. You can find rings here:
https://www.opticsplanet.com/vortex-30mm-riflescope-rings.html?_iv_tube-diameter=1-in
Low height scope rings should work fine with the Vortex Crossfire II AO 4-12x40mm Rifle Scope. Typically, when you have an objective lens of 40-42mm, low height rings will work for most rifles. You can also use this how to guide to help when selecting scope rings.
https://www.opticsplanet.com/howto/how-to-how-to-measure-scope-height-scope-ring-height.html
You can find rings for the Vortex Crossfire II AO 4-12x40mm Riflescope here:
https://www.opticsplanet.com/vortex-30mm-riflescope-rings.html?_iv_tube-diameter=1-in