Actually, I was able to stand beneath the bimini, but my head only cleared it by less than an inch. And, when sailing directly downwind, the mainsheet remained about 6 inches away from the bimini hardware, farther if I ran the traveler over to the side the boom was sheeted out to.
Chip, when steering with the tiller, which was about 4 feet long, I sat about a foot in front of the tiller on the bench seat, which put me about 5 feet or more from the traveler. Now, I guess that if that boat had a wheel, you would be hard pressed to get out of the sun, sitting behind the wheel. The cockpit, for a 27, though, was surprisingly spacious. Also, I used a tiller extension which made steering for long periods of time a lot easier to manage. My first till extension was homemade with a length of PVC pipe - worked great, but when I found a factory made job at WM, I decided to go with it.
All the best,