I bought the bends [ Stainless ] as “random bends” from a company on e-bay. I’ll dig out the link. They were not expensive – 6 bends of various radius’.
Unbelievably this mockup was fitted “out of the box” with no cutting / mods so far.
The top pipe needs to be about 2″ shorter where it enters the ex. stub and about the same where it goes into the collector [ another e-bay find ! ]. The cross pipe will need to be “cut and shut” – but nothing too difficult. The bends I have left over will get me there. I think the whole lot including collector was under £40.
I’m in need of another late engine BTW if anyone has a spare !