I'm about ready to take the Jubilee down myself. Luckily I'm not having to go into the motor though. I went through that last summer on an 8N. The Jubilee needs a new fuel tank so why I've got the hood off I'll break out the sandblaster and paintgun.
I refurb these old tractors as a retirement hobby. Here's a few of the ones I finished in the last four years. I've actually done about twenty or so.