I wish everything was that easy and cheap to fix!
I just want to point out an observation that I made when I added a 12v compressor fridge to my camper, in addition to the built-in propane absorption fridge that the factory supplies with most campers.
It's nice to have both, using one as a fridge and one as a freezer. BUT...each one now needs a different source of primary energy.
You have to provide propane(energy) for the absorption fridge, by filling the propane tank every now and then...BUT....you are free to park the rig in shady areas and the propane fridge will still work (assuming you have minimal 12v power for the control board)
But now if you add a 12v compressor fridge that is powered with solar panels, well now you need to always have the solar panels in the sun, meaning that camping in shady areas may limit the intake of 'energy' needed for that fridge. And...parking in sunny areas can reduce the ability of the absorption fridge to operate effectively, especially if that bright sunlight is heating up the RV wall where the propane fridge is located.
So what you end up with is a combination system that will require propane refills AND solar input. You kinda end up having to be very concerned with providing BOTH sources of energy and keep TWO units full of chilled and/or frozen food safe and cold. This might be OK if it's really needed for very remote boondocking for long periods of time with several people requiring a good supply of frozen food, and you have a large capacity propane tank.
As a solo camper, I found it to be less than ideal and ended up removing that 12v fridge and just make do with the absorption fridge. With the one small 50w panel on the roof of the camper, this provides enough energy to keep the absorption fridge electronics happy...and as long as it has at least a ray of light occasionally thru a canopy of trees, it provides enough for the built in absorption fridge 12v drain, which is VERY minimal.
Of course, if you want to give it a try, let us know how it works out for you.