Hi Dave
Congrats on the imminent arrival of the Jessem, think you will be pleased.
I think the link for the router cabinet plans uses 12mm ply and the base, sides and back of the cabinet are not fixed in, they are simply pressed into place by the internal shelf.
Mine is a little different, I used 18mm MDF as it's a bit denser and thus better at noise suppression. Also I did not use an internal shelf and so simply drilled through the metal frame and screwed it to the MDF. Also I used cranked blum kitchen hinges for flush fitting doors to the front. Made a seperate drawer which I free fitted under the cabinet with some 50mm castors from screwfix on the bottom of the drawer unit.
Regarding the dust extraction, I have utilised the clear plastic collar that comes with the Triton router and connected it and the fence with some old vacuum cleaner hose dug out of a skip, which then connects to my dust extractor. This works quite well for me, but would really benefit from using a bigger diameter hose instead of the slightly asthmatic vacuum cleaner hose. Ah, well we can always find ways to improve our workshop, tools and work practice which is one of the things I love about woodworking.
Funny you should also ask about the NVR as I only yesterday got around to fitting one to my table. Even though I have not yet had to take the triton out of my table I was keen to keep it with the plug. To get around this I have wired the NVR to be connected to a single socket directly underneath the NVR which I have attached to the side of my cabinet which I plug the router into.
Hope this all makes sense, if you need clarifying then maybe I can take a few pictures and post them up.
Enjoy your delivery tomorrow.
Howie