Lou, welcome to SMF! Glad you're here and looking forward to seeing you around the Forum, especially since we married the same smoker!
The door is the only weak link in the WSM, but it is a minor issue unless you like smoking at lower temps like 200F-225F. You have 3 choices for the leaky door.
1. Just smoke away and it may seal up in time.
2. Buy an aircraft aluminum, heavy duty aftermarket door. People love them. About $40 if I remember right.
3. Pick up a high temp sealing gasket, which is probably the easiest thing to do. My door was in terrible shape when I received it. Plus my WSM was slightly out of round so the lid leaked too. It smoked fine but liked to cruise at 275F. I smoked that way for 6 months then picked up a nomex gasket kit made for the WSM for less than $30 on Amazon. It sealed the lid and door with enough left over to seal my Kettle. I can smoke at any temp I want now.
Definitely looking forward to seeing what you smoke in that fantastic smoker!