We're happy to have helped. DO post a NEW post to tell us how you did. (At that time, do give a 'brief' summation of your original question so we can 'recall' what was going on. We do LOTS of posts daily.)
Good choice on the 36" door. And don't forget to keep nails and such away from the POCKET itself. Give yourself a 4' 'area' from the doorjam.