Hey John,
That's a neat loading platform too. It looks like the walkways I made for the sanding towers and engine service kit. Just shorter in height.
Another thought, use could use the scratchbuilding walkways and the stairs from last month and drill holes in the walkway. Then use tubing for the supports. I think I have some grating that could be used as the ramps to the tankcars to finish it off. Overhead pipes are easy as is the delivery pipes (just use wire).
Can't wait to see you guys.
.