For the next step I needed to cut the openings for the NFM ports slightly bigger than the Beckson's had been and also accommodate for the spigot. I used the NFM Template (shown in the previous photo) which, as I said, is a must have item for this job.
To cut the openings I chose to use the NFM template as my router guide and use my Ryobi laminate trimmer with a bearing guided flush cut bit. Using a jig saw, hand saw or sanding drums just seemed like an awful lot of work!
This photo shows the template clamped to the inside of the cabin and a partial routed edge. Make sure you clamp tightly!