Crank Help!

Do the same with the cups - get something to stick into those little holes on the outside of the cups (maybe a long screw or thin phillips screwdriver or just some bit of metal) and again gently tap it around to loosen and unscrew.

I'm not sure I'd risk this. If you can find someone/shop that has the right cup removal tool then use it. I had an incident where a bike shop said they the correct cup removal tool for a Royce BB. They didn't and ended up stripping two of the six small holes in the cup. Now I have to get the frame's BB shell heated in order to get the cups out in conjunction WITH the correct royce tool :(

You could try Witcombes in Deptford

otherwise

you can try out these guys:

www.classicrendezvous.com/

Good luck