Hi Mike,
Thank you very much for the images !
Looks like the COMET Coaches ( with insulated G Gauged Wheels ) would make a good match for the MTH G Gauge 1:32 Scale Hudson given that MTH never made any coaches for their 1:32 Scale Hudson.
It also looks like the AMERICAN FLYER BRASS PIPER would have been better suited to the Track Gauge of 1.75 Inch Gauge 1 or G Gauge !
Norman