Our mix up is your gain!
We started to print 600 steel cars in both scales then we realised they had 4 faults. 
The ends on the roof is wrong, the spacing from the end to the door is wrong, needs a filler piece for couplers and the bolster on the underframe needs to be removed.
While these issues don't affect the over all running of the model I won't sell them as they are as a high detailed kit. 
They come with body, underframe, bogies, decals, interior, window inserts, and detail pieces.. all you need is wheelsets, couplers, glue, and paint.
Decals are for the sar green and cream and for the Steamranger 602 Bowmans and 606 and NRM 606
To those who don't know a rip track is a section of track in a yard where they Repai In Place locomotives or rollingstock.