Over the last four hours I have completely redesigned my Lego British Rail MK 1 SO Carriage in LDD 4.3, the redesign was inspired by bricktrix own Cream and Crimson carriages, especially how he uses a reversed Lego headlight brick and a Lego Minifigure Hammer to make the door opening mechanism, and Lego curved slope bricks to give the coach a curved bottom, the redesigned carriage is 53 studs or 16.5 inches long, 8 studs wide (9 studs with the opening mechanism and window ledge).
The carriage is based on British Rail Mark 1 Coaches which were introduced in the UK in 1951 to replace older pre British Rail Coaches, the coaches were mostly 57 foot in length, some were 63 foot in length.
A comparison of my Lego British Rail MK 1 SO carriage with a Real British Rail MK 1 So carriage.
Images showing my Lego British Rail MK 1 Carriage LDD design in other liveries.
Update :
I have worked out the cost of getting the parts to build the carriage, the cost is £125.00, should take month to two months to save enough money to build two carriages.