Johnson TD 20 and HD 20 Concerns

[Det River Rat]

With my FD 11 set aside I decided to start on the TD 20 and HD 20. As I do not have a parts manual for either of these motors, I was hoping the pros here can help. Looking for the prop shaft seal part # for the TD 20. The # on it says 543870 which brings up no info. I would like to also replace the water pump on both motors. The TD 20 runs great other than the prop shaft seal leaking.

The HD 20 has no spark at the moment and I have not dug too deep into it yet. Idk if its going to need points or coils just yet. And any info on finding a recoil for the HD 20 would be great.

Thanks