From memory there was more than 1 830 painted into virtual ComRail colours, I don't have my photos handy at the moment but I seem to recall that one was painted into a standard mustard pot scheme only Maroon replaced the traffic yellow and Silver replaced the regal red stripe. It even had the scallops on the ends of the hoods as well as per a normal 830. The other version though simply had almost the same colours except the silver stripe on the ends of it it went straight across the end of the hoods and no scallops on it. It might be the same loco just repainted though, but I think it was another one.
I found it 862 was the other one there are photos of both of these units in the section on 830 locomotives in the book "Locomotives of Australian National" by Robert Sampson and Ronald.E.Fluck. Published by the Mile End Railway Museum in 1982. This book is now out of print though, but a friend or maybe even a library might have to lend it to you. 862 is the version with the stripes straight across the ends without any scallops.
I thank Wayne and you for the very interesting asides regarding 830 Class colour schemes. I had no idea the locomotives appeared in as many liveries, both official and improvised.
I have a lot of questions concerning 830 operations at Port Augusta and beyond, but they will keep for the time being.
Living in Sydney has put me at a disadvantage in terms of sightings, pictures, etc. That said, I have had a passion for Commonwealth Railways/Australian National for over half a century (ever since Kelloggs put tiny plastic GM Class (?) locos in Corn Flakes packets). A small HO scale layout (still in the planning stage) based on Port Augusta and western hinterland in the period 1953 to 1983 sustains my interest.
Ross alias Commrail