Our German Shepherd has degenerative myelopathy and has gradually been losing the use of his hindquarters. We have been function with a rear lift, but realize that he really wants to go for walks stil...
Scout's House is located in Menlo Park, California, so quite a ways from you, but they have a lot of good resources on their website. http://scoutshouse.com/health-resources/
BTW, the corgi featured prominently in their photos is my Diva's Great-Grandpa Jack. Unfortunately DM took him at age 12, but his last years were full of very high quality life thanks to his cart and the great care he received.