Unfortunately I too think it will be a long wait to find the exact model I'm looking for.
Isn't the bike I posted above a 1931 Model 6? 1930 were Druid (side spring) fork, and I think the interchangeable wheels (and the cranked front for needed to get the wheel in) came in for 1932.
http://luxuryautomotosale.com/node/16784So you could wait a couple of years to find a ratty one, spend a couple more years searching for the missing parts and restoring it, with a total cost of
? (Don't forget to count your mileage as you trot around the countryside trying to find bits or get parts restored.)
I think 10,000GBP for a fully restored bike with a sidecar is not unreasonable, but you could possibly argue the price down, and be riding next weekend. Sell off the sidecar if you don't want it.
Cheers
Leon