I have contact with a specialist in making all manner of kilt jackets and i'm sure they could do this one for you - they are one of hte few people manufacturing kilt jackets in Scotland as most of them sadly come from the sub continent

Theres also another company south of the border (England not Mexico!) that has got us out of a sticky situation a few years back and can tailor to order - i can find out for you, theres no harm in asking :-)