BSA Goldstar duplex rigid type frame

If I win the lottery...(ebay link).
This one is on ebay at the moment, It's a replica of the double downtube BSA single b32/34 frame. It would be good to make a bike around this but it's a bit pricey or the likes of me.

 I would like this frame. Heres the text from the ebay listing. "Replica BSA frame, originally designed by Bill Nicholson in 1951 as a trials bike, and going into production in 1953 with the all alloy BB32/34 engine and the gearbox that had just been developed for the new swing arm frame. Bikes were the prepared for Daytona in Febuary 1954 with Shooting Star and modified BB engines which were effectively a small fin prototype of the soon to be announced CB  engine. After the big success at Daytona with BSA having taken the first five places  with four bikes with this frame and Dick Klamforth 2nd on an early swing arm Shooting Star, the bikes were then equiped with wide bars and appeared one month later at Ascot, it only took BSA to start selling the rigid flattracker in the States with the first bikes appearing with 500cc DB engines,. The main picture shows a frame prepared to Daytona Shooting star spec, each frame is prepared as per order"