Welcome Chris!!! You have just joined the "elite". Owning a 25 is quite an experience when it comes to procuring parts.
Ditch the electric pump. Any F motor fuel pump will work on the engine. But the correct pump looks like this:
Yes, the fuel line is all soft from the tank to the inlet of the pump. It should be this brownish red colored soft line and I've not seen one go bad even after 40 years of use. Its tough stuff. Then theres a short section of the same on the outlet that goes to a hard line to the carb. It still has the original 1 barrel carb?
I have a parts 1 barrel. Some of it has been taken though. Let me know what exactly you need and we can work something out.
Bummer on the shifter. I can't help ya there. Maybe someone else on this board has one.
For reference, the front and rear drums are different. (ask me how I know).
And the last thing, throw NOTHING OUT
I wonder if you can get drums re-lined like you can for hydraulic cylinders? Check with white post restorations if someone doesnt have a usable set of drums that they'll part with. Theyre on the web.