Underneath, it all gets a bit "Um". The fence is such as you might find on a coachbuilder's grooving router or some such, but otherwise it ticks the box for "homemade moulding router". Which appears to pretty much tick the box for "scratch stock", as far as I can tell. Unfortunately I'm not sure it ticks any box terribly successfully. I really need to sort out a better solution to the (overlong) wood screw holding the fence (because it's inevitably rusted all to heck) and then try it and hope my fears are not confirmed.
But even if it's a total lemon, I still kinda like it.