I'd take this all day long over the blinged-up pseudo flat tracker RD350 that popped up a few days ago. It's single-minded, proper and will do the job it's intended to without needing loads of expensive Motogadget flim-flammery. Proper tyres, as well.
I hope it gets ridden. It will look even better when screaming around a track. The locking wire may be OTT especially when it comes to track-side repairs or adjustments.