To the OP and anyone else getting up there in age;
Find a friend that you can truly rely on to tell you the truth......even when it hurts. Ask that friend to tell you when you are no longer fit to wheel that rig around. Then listen to him/her.
At 82 you may have more than 10 years of wheeling left in you or you may have wheeled for 10 more years than you should have. That is the sad reality of life. I will use myself as the example here. I like to drive and put a lot of miles behind the wheel every year. I work full time and still drive between 35k to 50k a year. When it comes time for me to turn in my keys I wont be aware of it. That or I will be to stubborn to admit it. I also don't want my pride to get in the way of others safety. It is not fair for me to put a family in danger.
I am by no means saying that 82 is to old to drive. For some it is and for many its not. I am just suggesting that WE ALL look for that friend that will save us from ourselves.
Best wishes and may you have many many more years of doing what you love.