We decided to clad the vertical light boxes in 3mm foamex trays with vinyl over them. The trays were pre-drilled and screwed over the top of the existing structure of the vertical light boxes. As a result, these fitted a treat when expertly applied by the installation crew.
On the initial site survey we noticed a potential obstacle. Whoever applied graphics for the previous event had forgotten to replace most of the screws that held the towers together. So we made sure we had sufficient quantity, sizes and options for the installation. Again, proof of how important the initial site survey is.