As per our ongoing list discussion of CBs there is a c.1951 Avant Courier frameset on eBay at the moment - in Llandrindod Wells. Too big for me unfortunately. He also has a mid-60s Carlton framset - also too big for me.
No connection to the seller although I did spend many weeks on an excavation on the outskirts of Llandrindod Wells 20 years ago.
Paul Williams,
Ottawa, ON, Canada