This was a question that I had some time ago. I went ahead and replaced the origional leather buckles with an 8-yard hand sewn Tewksbury in my family tartan.

Seriously though, I just left them alone, it's a pub kilt.

I do recommend the Tartan Thistle. It's here in the Pacific NW, and Angus is top-notch, super helpful, warm and welcoming, etc.. They're at all the games up here, and are always good for a chat. And you can order online, so support a great small celtic shop!