I've seen a coat which looks great, handmade in Scotland with a beautiful selection of tweeds. I'm looking at the Pembroke in Harris Tweed Barley Twist in Murdo. I have super long arms and they have options to customise length.
The only downside is their website is a bit rubbish with only one photo. I'm sure quality will be great not sure about the fit.
www.harristweedshop.com