Good luck to you and Katie in the race this weekend! Glad she is still doing well. Have you had any nose bleeds?
We invested in a dog ramp years ago since Timber has never been very agile. Purchased from Costco (petstep brand) and has really been helpful, especially in these senior years. It's a little heavy and you need the room to lug it around in the car but it is very stable and has a rubber type, anti-slip coating.