Replacing forks on a G450X , technical specs

I do NOT plan to do this, re-posting this here since it comes from a reliable source, on G450.Org forum, by someone who is familiar with the G450X, and possibilities. I cannot verify the accuracy, yet it is a very good STARTING POINT!:
cheers, Chris

"So some homework I have done is below. It is stuff I have dug up on internet in various places or measured on my bike. Please correct anything you see that is wrong. I will be updating this as I find stuff out as well.
All measurements are in mm unless otherwise stated.

Stock BMW
45mm Marzocchi Shivers
Upper/Lower Triple Clamp Diameters: 53/58mm (Internet); 52/57mm (Measured on fork tubes, is there a 1mm difference between clamps and tubes?)
Triple Clamp Offset: 27mm
Fork Spacing (Fork Tube Center to Center): 185mm
Axle Offset: 2009 - 35mm; 2010 - 32.5mm (assumed)
Axle Diameter: 25mm thru; 28mm large clamp
Steering Bearings: 30x62x16 (IDxODxHeight)
Steering Tube Length: ??? Approx 240mm measured
Fork Length: ??
Mounting Hole WIdth (Front): 60mm rough measured
Fender Mounting Holes: ?x?

KTM WP
48mm MXMA 4860
Upper/Lower Triple Clamp Diameters: 54/60
Triple Clamp Offset: 20/22 (Model based or Adjustable?)
Fork Spacing (Fork Tube Center to Center): 190mm
Axle Offset: 35mm
Axle Diameter: 26mm
Steering Bearings: 29x50.25x15 (IDxODxHeight)
Steering Tube Length: ??
Fork Length: 935mm?
Mounting Hole WIdth (Front): ?
Fender Mounting Holes: ?x?

KTM WP
52mm
Upper/Lower Triple Clamp Diameters: 57/64
Triple Clamp Offset: Lots of options based of original application, have found Applied in 18, 19, 20 & XTrig in 22 & 24
Fork Spacing (Fork Tube Center to Center): 190mm assumed
Axle Offset: 35mm assumed
Axle Diameter: 26mm assumed
Steering Bearings: 29x50.25x15 (IDxODxHeight)
Steering Tube Length: ??
Fork Length: 935mm? assumed
Mounting Hole WIdth (Front): ?
Fender Mounting Holes: ?x?

Ohlins
RXF (I assume these were the models?)
Upper/Lower Triple Clamp Diameters: 54/59
Triple Clamp Offset: ?? A handful do exist, no specs on them
Fork Spacing (Fork Tube Center to Center): ??
Axle Offset: ??
Axle Diameter: ??
Steering Bearings: ??
Steering Tube Length: ??
Fork Length: ?
Mounting Hole WIdth (Front): ?
Fender Mounting Holes: ?x?

To be continued
Matt