[Boater Sam]

I too rebuild radios in the UK but to recap a vintage set with obvious yellow poly caps is a shame. It doesn't take much to restuff the originals.
If we can find some old originals or even good photos of the capacitors new sleeves could be made.
Does the set work OK?
I don't know where you are located, I am in Cheshire around Middlewich if I can help.
Sam.

PS PM me if I can be of assistance, I don't get here often. Sam.