Hello 

I model Southern outdoors in 1/29 scale and indoors in HO, in Oban, Scotland.
I need more information, photos and possibly diagrams of the consist of these trains.
I checked Ralph Ward’s Southern Railway Pictorial which shows such a train at Asheville in July 1973: CNO&TP F7 6119, caboose X636, UTLX tank car 39918 and 2 special sprayer cars including 991495.
I have in 1/29 an F3, caboose and tank car but need to adapt and detail a couple of flatcars to the sprayer car specifics. 
This would make a very unusual and striking extra on my garden railroad!
If anyone has more information, particularly photos or diagrams of these cars, I would be very grateful.

Kind regards

Sandy Smart