You might want to try out a recumbent tricycle. They don´t look like a tricycle, they are low to the ground and the non-tadpole version has the pedals in front. With only the pedals in front it means you can walk into the bike seat by putting the pedals between your legs and walking backward and sitting down in the seat. It is easier to do than it is to explain. Find a recumbent bicycle shop that is willing to work with you, get the chain adjusted to fit your leg length, and give it a whirl. You just might find you like it!