I guess some of you might have been wondering how the kit design was going. If not then maybe you will be interested enough to read on anyway. I've now built enough to know that all the permutations will work and only some very very minor changes will be needed before I reach a final version. Here's the proof

Left to Right: Diagram O4, Diagram O6 (O5 with end door conversion), Diagram O1. I stopped building when I ran out of parts. Everything else will need to be begged bought or otherwise obtained to complete.

A close up of diagram O1. I had to file the chassis a bit to fit between the tabs for the solebar, but everything else went together well enough. Also in the picture is the tail end of the milk train; part of a milk brake van (also under construction and at the point where the parts run out) converted from pharmacy cars after WWI and allocated diagram O13. It is a Blacksmith kit.

O6 showing the end doors. According to my main source of reference (the excellent work by Slinn and Clarke) there were not many of these built, but I couldn't resist doing the end doors as an extra. I have still to build the O5 kit as intended, but I was able to check it worked on the way to making this model. The filled in planks are missing from the sides. An oversight on my part that is easily fixed. I also need to make sure there are enough lamp irons for this version. It has different side ones compared to diagram O5 because of the end doors.

O4. The same subject as in the original post about these items though now the roof profile is corrected, the fill ins for livery are present. All I am going to change here is the same as for all the others. That is, to give the springs a little more material where they meet the hanger because they are rather spindly for my liking and a probable weak point. This is the only vehicle here built with a cleminson chassis. The others have my own design with a sliding centre axle that will be provided. Any of them can be built by either method. Also in this picture is another brake van from a Blacksmith kit. The dean bogies are something I've been working on for a few kits. Fitting the spring hangers will require removal of the footboards. More on this one another time.

Hopefully next time you see the siphons they will be finished. I keep telling myself that I must finish things.