Hi Jeff,
Mine was a 95% rupture with 1.8cm gap on th eruptured part. I was in plaster for effectively 3 months. I was then told to try walking on it for a month and if I had problems then they would offer me physiotherapy, having done the other leg over 8 yrs ago I knew the exercises and was walking with a crutch immediately, then limping for a few weeks but not walking normally for several month.
Whilst in plaster try to exercise you injured thigh by lifting and lowering the leg when seated, this reduces muscle wastage. Likewise if you have your toes free exercise them as much as possible for the same reasons.
Once out of plaster I was given a foam wedge to put in my shoe to raise the heal slightly. Then try exercising by going up onto your toes lifting your heals off the floor and down until it aches or starts to pull, then rest. Once you can do 20 or so try doing it with your toes on a low step (or book measuring a few cms) this stretches the tendon when the heals are on the floor are on the ground and strengthens the muscles in the calves. Hope this helps, any other questions please ask and if I think of anything I will post it.
I've been banned from playing tennis, unless I'm sitting down, I now want a remote controlled wheel chair!!
Good luck
Alan