I'm sorry for your loss. Your hands have been more than full dealing with the estate. And now you have the prospect of selling the rv in front of you.
If you consider consigning your rig, perhaps there might be a dealer closer to home for you. PPL is quite a long haul from where you are located.
I think I would be like you, if something happened to DH, I would want to continue traveling in some type of RV.
I wonder if you could trade what you have now in for what you think you could handle driving & upkeep.
If you consider selling privately please be careful using CL or any type of private listing. I live in GA where there has been a number of deaths related to craigs list. Never meet prospective buyers alone. The police depts are recommending that people arrange to meet at the police station. This is recommended if it's just a cellphone or all the way up to a vehicle.
I hope to see you on the road somewhere. It'd be great to sit around the campfire & share some stories with you.