Looks like a great platform, but I have not seen one that would work for me.
I guess the engine is the only good thing on the bike, which is a poor place to start from.
I would want one that was built like an old dual sport, or at least like the old Triumph Daytona's which did REAL well on dirt roads and smooth trails.
Some suspension, like 5 or 6 inches in the front at least, at least a 19 inch front wheel, 18 back, flat thick longer seat.
Most modern bikes like the savage bend up the frame rails to get the seat low, which screws things up, forward controls, smaller wheels, belt drive...
A lot can be done with the bike if you keep it on the street, but to make it into an old standard you might as well put the motor in some old frame...