Very few people would have used the Standard 8/10 front uprights after 1960 or so...

They were smaller and flimsier than the Herald uprights, which became available about 1959. Of course, the Standard 10 rear end would have remained in use because the independent rear end of the Herald would have clashed with the basic principles of the Clubman-style of car. And anyway, Lotus 7s had them.

The placement of the engine kind of defines the design as early sixties. By the mid-sixties the engines started to migrate back and give builders headaches trying to get tail shafts short enough to fit between long gearbox tails and the final drive. I can't say I've ever seen a Clubman with the gearlever having its roots so far forward.

These cars are great fun to drive, you'll be amazed at its performance and I hope you really enjoy bringing it to life.