I had a 1964, 13 window deluxe.
Took me 6 years to convince the owner to sell it and then took me 4 years to replace the bottom 12 inches all round.
Narrowed a front beam, fitted discs, fitted IRS on the back.
2007 cc engine with twin 40mm Dellortos, ect, made 100hp at the back wheels and was still making power on the dyno at 100mph.
Did all the work myself except the engine,I did the bodywork,paint, suspension, interior etc
The original owner when I picked it up
Then I got to it