More on my Facebook page here https://www.facebook.com/wallsrail
Reference photos
https://paulbartlett.zenfolio.com/brtgraincovhop
Pedestal Suspension Units
https://www.wizardmodels.ltd/shop/wagons/abwc008/
and
https://www.cambrianmodelrail.co.uk/store/C40-2-Compensation-Units-p95280236
Couplings
https://www.bachmann.co.uk/product/category/156/mini-loop-screw-on-coupling-short-%28x10%29/36-025
Transfers
https://www.railtec-models.com/showitem.php?id=1462
Other tools and materials purchased from
http://www.trains4u.com