Availability in the US is so vast that I doubt you will be able to sell them there.
Then there are very few UK members on this forum.
The ads below highlight 2 major ebay sellers in the UK.
I am UK based and have bought from both many times.
One is in Kent and the other Slough.
Thank you George for your message. Very kind of you to share your advice.
I have contacted the 2 sellers from eBay. Hopefully they will be interested.