thank you so much. I was looking for the depth of the lazerette to make sure the cowling would fit, and the dimensions of the hole to make sure the shaft would fit. I have a force 9.9 in there now, and the tiller fits through the opening just fine so I can't imagine a similarly shaped tiller handle having a problem.
The post to which I was referring was vague: Auxiliary Outboard for Bristol 27
I would have pm'ed him directly, but the post was several years old (also, I believe I am too new to send PMs). Thanks again, you're a life saver!