pro armor cab enclosure and heater opinions

What do you guys think of the pro armor cab and adding a heater for the winter or an out of town trip wit possible rain?
I just bought some pro armor doors so I can run their cab. The only problem I can see is that my rzr has the factory rear cage and I haven’t seen a single pic of the cab with the bars going thru it. Also what windshield do you guys use with it. It looks like I’ll also have to move my light bar for a full windshield.
Do the cabs seal well enough for a heater to be worthwhile or is it not worth the money without a solid cab. I’m not going to invest in more then the PA cab. Just want to take the kids out longer and give them a chance to warm up while back roading and sledding around.

I know it’s early but trying to work it all out now so when summers over I got it figured out, or if we go out of town we have it as an option to go out in the rain.