After painting the brick panels flat red I used joint compound for mortar. I gave the compound one day to dry then sprayed with Dullcote. After letting the Dullcote dry I applied several coats of India ink/water wash. If you don't use Dllcote the water in the wash tends to soften and remove the joint compound. The results are shown below.
Before India ink / water wash
After several washes. It is hard to see in the photos but there is a marked difference.
The shed is fully painted. I glued in the brick panels.
I then glued in the Plastruct H-12 columns and OWTA-24 trusses.
I am reserving the middle columns for a crane-way. I elected to build my own design. The crane-way itself is:
BFS-20 I-beam (if I had the black ABS version I would have used this saving have to paint)
C-16 channel inserted on one side as a stiffener
C-6 channel cut to size and glued vertically to the other side of the I-beam
H-6 column to be used as 'track' for the motor housing I will build next W/E