Listen to the advise on your weights make sure you are not creating a dangerous situation especially if you plan to travel in the mountains. Nothing worse than spending that kind of money and not being satisfied.
You didn't say if you had previously owned an RV and if not when you make up your mind on which rig you want take someone with you or pay someone who is an expert to look over the rig.
You can get a lemon in any brand (don't ask me how I know this) so just make sure you don't take the dealers assurances if you are not familiar with where to look for potential problems.
Good luck with your retirement you are going to love it. Just don't rush your purchase.