Finally got around to a couple of quick photos:
Scalebox installed into the stock MTL mounting hole, truck mount coupler clipped off:

I did use the hat shim with the sides clipped off; The scalebox without the shim down fit fine but the height seemed high... Probably dropping the overall car ride height might be better, but I wasn't fussing this much. In any case, no truck clearance issues at all, and it does seem to fit the 905 dimensions as expected.
Underside view:

They really do seem to be very compatible with the AZL couplers I'd say.....
