Hell of a lot of work to make that swap.
My 35 cabriolet had been modified to accomodate two rear seats, the deck had been shortened, sort of a pre production club cabriolet. I wanted to return it to the regular factory spec so had to piece in extra length between rumble lid and cockpit. Had to remake top irons as mine had been modified. A lot of work, not quite convinced I got it spot on but it had to be done. As it has been mentioned the club cabriolet top is a very different top, built to take two extra heads!
You could perhaps re shape top bows, lower them a bit to give a bit more rake, but to be honest your car is a club cabriolet and it is probably best left the way it is. It is a rare car.
I only did mine because it was a bad conversion in the first place plus there was no such thing as a 35 club cabriolet.
It is your car of course but I would really advise leaving it as is, if you want to personalise it how about rear fender skirts, they take the eye down and away from the top.