Hi people, i have decided to redo the paint on my GTV recently and will have the car back in a few weeks

Hooray.
My question is about all the side window rubbers have shrunk about an inch!!! If anyone has had any luck finding rubbers for inside the window seals and outside weather strips. im looking for anything that will fit even if its from another car. Im not looking to spend mega dollers on original alfa seals as im sure there is somthing out there from a common car that will do.
If anyone can help by dropping a line in here on where i can get these it would be much appreciated!!!
Thanks
Trent.