B.m.c. noddy vans

Does anybody have accurate dimensions for the Austin/BMC VA “Noddy” van, designed for British Road Services and bodied by Star Motor Bodies? I’m looking for the principal measurements - wheelbase, overall width, height and length, front and rear track mainly. Were there any dimensional differences between the weight variants? Also looking for photos or diagrams of the rear end, arrangement of doors/ tailgates/ roller shutters etc. Info needed to produce a cad program to 3D print accurate models in various scales. Any help gratefully received.