hifi engine

Akai 4000D reel to reel tape deck

I am trying to find a supplier of spare parts for my AKAI 4000D Tape deck. can anyone help me? I need the reel retainers and the felt pad that sits adjacent to the erase head. I am in the process of transferring all my 40 year old reels to CD and I also think it would be a fairly good idea if I could get the machine serviced. Does anyone have any idea how much this might cost?