LSC containers

I've always wanted one of those Speights containers pictured on Motorised Dandruff:

Speights LSC container. Stolen from NZ Railways Rolling Stock Lists
So I knocked this up:

As you can see I've designed this so that the tank can be painted separately (so I can add the Speights decal basically) and the ends added separately. I've ordered one and put the design up on Shapeways.