Slight thread jack:
There are some good tips are some really good tips on this newsgroup when it comes to panel upgrades and electrical systems.

I redid a panel upgrade last year and it went from this:
https://s27.postimg.org/ojdfgpfmb/Ni...201_190105.jpg
to this:
https://s28.postimg.org/j14qyy8rh/20...164751_640.jpg
Just need to fix the shroud which the previous owner messed up.

I used a Brother label printer for the labels, the two master battery switch setup with common bus behind the panel (master fuses at batteries), individual switches and fuses to each instrument (automotive blade fuse block behind panel) and XT60 RC connectors to the instruments so that they can be removed with ease (I couldn't source Anderson Powerpole connectors where I live and it was too expensive to ship).
Thick walled silicone hose is cheap (sourced from China via eBay), comes in various colours and works extremely well. Removing instruments is easy and it reseals perfectly every time.
I see a lot of guys using those huge (ugly) master switches but there are smaller more elegant switches available which can switch 10A to 20A DC if you're willing to browse a few spec sheets.
One can do a first class job without having to break the bank.
Thanks for all the tips guys - keep them coming.