Stop in for a cup of coffee

Found out yesterday I have arthritis in both knees-figuring out a rehab plan that does not interfere with car assembly.
:-(
No fun at all. I tore the lateral meniscus in both knees about 8 years ago and spent a month in a wheelchair followed by 6 weeks with a walker. It took nearly 2 years to be able to walk fairly normally again, the first 6 months of it with a cane.