If it's your first kilt, I very much doubt that you will be able to tell the difference between hand-sewn and machine-sewn. Many who have been wearing kilts for years can't. And many who can, don't care.

There is also "hand finished;" that is, much of the kilt is machine sewn, with some, I think usually the pleating and a bit more, done by hand. They are less expensive than those completely sewn by hand.

At any rate if you must have a kilt sewn by hand by an elderly 26th generation kilter living in the same smoke-filled croft in the outer Hebrides that her ancestors moved into during the reign of Robert the Bruce and who speaks nothing but Gaelic, now is the time to get one. The pound is down to US$1.36905, that is, the US dollar is now worth GBP .7304, the lowest I remember ever seeing it.