From a headroom standpoint, you should "just" fit. Perhaps a greater concern should be the difficulty getting in and out of the car. The seats are much lower than a bug, or even a Karmann Ghia. You need to see one and try it out. Perhaps there are Pumas close to you you that you could try out the seats? Where are you located?
I did look at one I saw on the samba that was in Illinois, but I think I have found a roadster ragtop.
In my porsche 356 with the tip on it was hard to get in and out and very little headroom, I drove it without the top unless I ran into bad weather.
I am going to try to buy the convertible so I'll have no problems.
Thanks to all for the help.
I drive a 1984 GTI in British Columbia Canada.
I am interested to have more details on your seat choice and source.
My GTI has 3,000 km on it with original brown leather seats.
I am 70 6’1 220lbs and find entry a little tight but comfortable one in the seat and stretched out.