Time to get started.

Hate to pee in your cornflakes, but who's going to narrow the rear end for you? If I'm reading the tape right it's just a tad too wide and the spring perches will need to be moved as well. The 7 1/4" rear in Hester measured 52" housing end to housing end and it looks like yours is 57 3/4" to me. You will like the 3.55 gears though. That is what is in Hester and she can get second gear scratch.