>>not have the hassle of roof leaks and other quirks
The best way to avoid the "hastle" of roof leaks is to not put it up.
After all - if you are going to be a "Professional" idiot your public will expect you not to use the roof.
May I recomend the sheepskin hats from the firm on Thruxton Airfield - make sure you get one that covers your neck.
Oh yes - one other thing - lightweight trousers - remember your knickers - sudden cloudbursts make for amusing comments from children (so I'm told).
Dr E