I seem to be pretty comfortable in mine. Of course I built it so I didn't look like the "monkey humping a football" hunched over the steering wheel, etc. I am building a black canvas top, and looking for a 30's heater for mine this month as well. Can't wait to show you.
A little updated picture to show some of the subtle finishing I've been doing to mine this summer, like interior panels, etc. Been driving this thing a lot.