Lots of updates over last few weeks... After speaking to the specialty inspection site I got the distinct impression that they were going to require fenders so I jumped on getting them mounted ASAP
First up was to create a secure mounting points on each of the hubs - I opted to use 3/4" 1/16" square steel tubing following some advice from Allan.
Front
The front actually has a second mount under the top plate...
Rear
After that I used some 3/4" oak to mock up the mounts and check for clearance though the complete range of movement.
Front
Rear
