So, a mixed day today.
Good news - the rotary fuel pump arrived (SO much quieter than the Facet solenoid pump), so I completed the refurb of the entire front end fuel system with the large Mahle fuel filter and the rotary pump, new braided fuel hose back to the engine bay, new fuel sender pipe with internal filter, and a cleaned (rust free) fuel tank inner.
This kills multiple birds with one stone - the glass fuel filter, the noisy pump, the deteriorated fuel lines and dirty fuel tank. The yellow stopcock still allows for easy fuel filter replacement.
Now the bad news - I received the secondhand Porsche fan nose/vane in the post, only to find it doesn't fit any of the mounting points of the alternator. <sigh> Looking at things more closely, it appears my alternator is much deeper than Danny's, meaning it pokes out the back of the casting by roughly an inch.
Oh well, I can use it as a rough guide to get a local welding/fabrication firm to build one when they also fix the exhaust and extend the oil filler tube. Luckily, living close to Portsmouth harbour and plenty of leisure and commercial shipping services, there are plenty of local welding/fabrication firms I can call on to help.