I had a hard time to find it too... I mean to find it with a "good" price. I paid it $75 with shipping, new and in sealed box. I saw some with a price tag of $140, the cheaper one I find, was a started one, with missing and broken pieces for 30 Euros. Needs a lot of patience to find one still non assembled and with a good price. I will check around and if I find something I will let you know.
Thanks!
Removed the starter, filled up it's space, and rebuilt exhaust manifold and carburetor.