The steps seem to vary on the prototype. Some have a very defined "L" shape, others look much flatter. So far as I can tell my prototype had a pronounced L-shaped rung at the bottom and two flat steps.
rear steps etch
Note that the rungs are thicker on the left side. Folding this etch results in a set of very slightly L-shaped steps.
So I can't really use these. Think I may have to make some steps from scratch in styrene sheet, but decide to try a bit of butchery first. Separating the parts, I cut out the larger central steps and file the inside smooth.
With a little filed off the thick end, these will now go together the other way around.
Much closer to my prototype. Now I've only got a thin strip at the top to attach to the footplate, but this could work out well.
There is a potential problem fitting these steps, in that they could connect the metal overlay on top of the footplate with some part of the underside. This thin strip now won't make electrical contact with the footplate.
I've filed a gap in the footplate deep enough that the steps should lie flush with it (next time I'll do this before fitting the tanks).
top of the steps not touching the metal overlay.
Now I can use epoxy to carefully fill the gap.
Cruel in close-up, but reasonably pleasing I think from usual viewing distance.