Honda CR 125 Elsinore project

This is '76 CR125 Elsinore, with Mugen kit, up-pipe and Simons forks.
The bike is under restoration. A very slow project, though.

Mugen kit,
Thor (?) swing arm

Mugen head
The cylinder is standard. Anyone with a Mugen cylinder. Please

Simons forks

As of December 07, we have now done something. Any idea of the brand of the swing?
Please  inform