First build ,cat D11

[steamer]

Measuring the diecast is the only method I use to get dimensions for scaling. Measure what ever part you want to produce on the diecast, multiply by 50 to bring it full scale and then divide by 14.5 to bring it to the scale your building in. Building models this way keeps the proportions roughly the same and is what I call it. ( looks right scale)
Rob