Surprised if a LR breaker couldn't supply one as I wouldn't have thought it was a component that often needed replacing, mine has probably been on the car for nearly 32 years.
If your Classic is an early model is it not possible to utilise a SW bottle from a later LR product?
Thank you! The two ebay bottles do not fit, it must be the one in the picture of my car above. The right bottle is the one that offeret by oceanparts. Its impossible to order it, because the basket do not work. I asked them via email and i hope they answer tomorrow.