Wow - as always, absolutely amazing help and feedback. I'm so fortunate to have all your help and guidance on this. GoMog, I was open to all solutions, manufacturing my own or buying off the shelf - my welding skills need work, my joins look like a lump of lava that a volcano threw up so I'll probably play is safe and go with New England Morgan Spares - they've always been a great source of help. With each project I complete I build up more confidence to delve deeper into looking into being more self-reliant, but in this case, I'll probably play it safe (literally).
As far as the air pump goes - it must have been after market, if nothing else, the plumbing joint that connects the pipe to the exhaust says "Made in USA"
- I wish I knew more about the mods on the car, it came with cow catchers and I assume it was used for racing or rounding up steers (or both) .
Luckily, I no longer have to worry about smog tests for a car of this vintage - wish they did proper MOTs as this is the only thing they consider as to whether a car is roadworthy over here - the number of cracked windshields, broken lights and bald tyres on the roads is quite startling.
