How about a 53 Black Shadow (needs rewiring) for £819, or a 51 Comet for £730 or a or splash out on a series D complete with panniers £2816? 
Prices from 1965 Motor Cycle back pages adjusted for inflation
Actual prices £49 £55 £189 (Last 2 were at Conways)
(65 was the year I bought a blue Rapide for £65 and raced it with BMCRC in the production class)
See http://www.thisismoney.co.uk/money/...tion-calculator-value-money-changed-1900.html
Prices from 1965 Motor Cycle back pages adjusted for inflation
Actual prices £49 £55 £189 (Last 2 were at Conways)
(65 was the year I bought a blue Rapide for £65 and raced it with BMCRC in the production class)
See http://www.thisismoney.co.uk/money/...tion-calculator-value-money-changed-1900.html