Here we have an Southern region Snowplough kit for N Gauge, these were converted from Schools class locomotive tenders in the 1960's, what you will get is the snow plough body and chassis in resin with instructions, you will need to get the tender wheels, buffers, paint and transfers, there is a photo of a partly finished example and the kit parts. I used the Ratio ladder etch to provide the railing on the rear.

Thanks for looking.