(Boat "Flamingo" - posted by Alan)
I'll gloss over the bits that went less well than expected. I hadn't expected to break my only 6mm tap when trying to cut threads in a bulkhead in the engine room, but when I did I was inevitably forced to suspend operations long enough to drive to the nearest Screwfix for a replacement.
Then the next day, when I hoped I had stopped drilling holes, tapping threads and routing conduit in the engine room, and was actually ready to start wiring in the new cupboard in the main cabin I discovered I had no Lucar connectors sufficiently large to go on some of the cable sizes involved. They were not an item I could have got at Screwfix, at least, but another trip was needed to a Toolstation. First Daventry, then Northampton - I know how to live!
I have relocated the SmartGauge that attempts to predict the state of charge of the batteries onto my new panel - it's very much easier to check it in the main cabin than to have to clamber into the engine room to do so. I've also added a very basic (and cheap!) digital read out that shows the current being consumed in total by everything in the main cabin. It's dead easy now to see exactly what is being used at any point in time.