I've hit some snags with component dimension limitations causing severe flex and bending in certain areas, and my day job becoming more demanding on my time and energy have left me little to no time to work on coming up with a practical solution yet.
Basically, the problem lies in the fact that the wheel hubs i'm using require a 26mm outer diameter bearing, which meant that the inner diameter, and therefore the axle diameter, HAD to be 10mm as this was the only size available at the time, which is smaller than I had originally designed for. Subsequently, the axles bent on the first test ride, leaving me lost for ideas at the time. The same issue is present for the kingpins; the tubes I had used to house the bearings limited bearing choice to 10mm inner diameter, resulting in much the same problem; the entire front end developing it's own 25 degree camber
I have come up with potential solutions to this, namely, rebuilt the front wheel mount bridge thing to accept some larger diameter kingpin tubes and therefore bearings with a larger ID, and also possibly rethink the wheel mounting method, utilising a "C" bracket type thing onto which the wheel will mount, rather than the cantilevered style mounting I'm presently dealing with.
With some searching online for bearings to fit the wheels, I was also able to find some 26mm OD bearings with a 17mm ID, which would be far more ideal for the wheel axles. Only issue here is that I'd need to machine the axles from some round barstock, as to the best of my knowledge, M17 bolts are few and far between.
So yes, that is the rather disappointing reality of the state of this project at the moment.
Thanks to all those who have been following up to this point, and *hopefully* I will be able to find the time to actually attempt to apply these revisions and actually get this thing working!