Dan's got one of those MC16 F3 clutch and gearbox assemblies on his race bike, the jammy git!
When I first saw it I thought he'd copied what Matt's done on his 300. Then i noticed the proper blanked off kickstart casting. Looks exactly like the RS side case but with the kickstart added. Also it's only got the one big bolt holding the gearbox sprocket on, RS style.
Just when you think you've seen it all, something new comes along to be jealous about!

Get your finger out Andy. By the time you get those bikes built you'll be too old to enjoy them!