Sadly I’ll not be at Busfest, though happily I’ll be on holiday rather than working. There is some access through the top. See the photos I’ve just taken as a guide. Hopefully the first two pictures will give you a clue as to how much space there is between slats.
You can reach through as long as you don’t have the drawer cover in place. I have two with my setup so you could pack the drawers to leave the compartments free that you want access to. The last photo shows the drawer pulled out half way.
We have a tailgate so opening the drawer in the wet is less of an issue. We try to organise what we keep where so as not to need to access that drawer until we’re up. I think the Torridon unit has had some development since mine. Try speaking to them if you have any unique requirements, they do there own CAD drawings and cut from those so nothing is impossible.
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