Hey Jim, I think some work can be done to the seat bracket to make it lower. I believe mine was modified prior to purchase by me. Either that, or it's a custom bracket. I can post a pic later if you'd like some ideas.
So the question is... What is the increase in lumens, when one changes from a 6V 35w Incandescent bulb, To the new and superimproved, 6V 35W HALOGEN bulb????