Yeah, I wish I'd kept my DB32 Goldie too (109 YRF). It was a '59 model that had been rebuilt by a mechanic in one of the local bike shops for his own use. He'd had an accident and so he couldn't ride it any longer. I did a straight swap for a 1970 Suzuki Hustler Mk2 - ridiculous to the sublime. My Goldie had a concentric carb fitted (though I had the GP too) and an alloy Lyta tank and the Superleggera fork conversion; oh, and a twin leading shoe front brake. Can't remember the make of this, but it wasn't the common or garden BSA/Triumph type.
One of the many bikes I wish I'd kept. Still, I do have a very nice 54 Triumph Tiger 100 that lubricates my garage floor nicely.