All about clearance, Clarence. Sorry, couldn't help it!
If I was looking to explore in the snow, I would want chains for all 4 tires. Vbar or even regular links. Ladder or diamond is up to you.
But it sounds like you don't have clearance for chains in the front.
Can you get even cable chains for the front?
Have you looked at the clearance between the tire sidewall and suspension? My guess is that the A-arm is really close.
If I couldn't get all 4 chained, I'd be quite a bit more cautious. I wouldn't be too aggressive trying to get way back with bad conditions possible and snow already on the ground.
If you can get cable chains on the front plus whatever in back, you can cut some trails with a factory rig and lighter drier snow up to about the frame. A V8 or powerful engine helps though, as you'll be on the gas. In deep dense wet snow the cable chains aren't great but that may not be an issue in CO with dry snow.
I'd also consider something like the Trac Grabber if they fit your wheels. No sidewall clearance issues and they are like a paddle for each tire, which work great in deep and even wet dense snow. Super easy self-recovery tool for situations like slipping into a ditch that might take forever to dig out with a shovel. Just need to be mindful of fender clearance, especially turning.
But... everyone has different risk tolerance, expectations, and desire to explore. Once you get out in the snow, get stuck a few times, and do some recoveries, you start to form your own opinions on gear to suit those things. Hard to give advice to someone else, unless they know exactly what they want to do and under what conditions.
Just keep in mind, things can turn real ugly quick so just use common sense and travel with another vehicle if you're wanting to get way back during winter.