Mark van der Kwaak is working on another very cool design. The bike shown here is what he calls the Harton (doesn’t sound as cool as Nortley Fartster, perhaps, but it makes sense), a Harley Evo powerplant in a Norton featherbed style frame.
Starting with the rake, trail and wheelbase of a Triumph Speed Triple he then takes a Harley Davidson Evolution V-Twin, uses 2 front heads and modifies them for left exit exhaust. He uses 2 Mikuni carbs, Shovelhead cases and lots more. He’s still adding details but it looks like a great design candidate for an eventual build.