Colour Slides of B17 class

[silverfox]

I am in the process of building a 5in B17, and would like to complete my collection of slides of the class. I have the list from colour rail and note that the following are not there

61601/2/4/6/9/11/9/21/3/4/8/30/1/3/5/42/6/50-1
I know 4/24/8 will be long shots, but someone somewhere must have colour slides of the others
Does anyone on this list, know where (other than colour rail) these might be obtainable, money of course would change hands!
and if you want to ask questions on the smaller B17 please do so

Regards
Ron