My switches, cirquit breakers and loads of other stuff arrived today so I started to look at how they would sit on the panel. The cirquit breakers are a bit bigger than expected and I noticed I could have some interference between the lower cross tie and the breakers behind the panel so I had to move everything up slightly. So I drew a new design in AutoCAD with the 3 main gauges, switches & breakers moved up about half an inch, printed it out and stuck it to the panel. The panel looks still the roughly same but I should not have any interference issues now.