Good you have a local willing to do it.

Just for price comparison, UK charges $25 to "chop" a kilt. I've bought two off the scratch and dent rack that were too long (I wear a UK short) but it was worth it to have them chopped to short and still get the faster delivery and discounted price.

So anything up to $50 plus probably another $30 for back and forth shipping to UK and you got a fair/good deal.

Ron