If anyone in interested in this type of equipment there is a source on Shapeways.
I bought the 1/64 version and it is nicely detailed. They do need to be cleaned and painted.
Attached is a link to one the 1/50 versions. He also makes sanders in 1/87,1/64 and 1/50.
https://www.shapeways.com/product/W848ZGA7J/1-50th-snowplow-truck-12-wide-angled-funnel-blade?optionId=64655495&li=marketplace