Speaking as someone long removed from the homeland, I can mirror the comments made above.

Wear whatever tartan you like. There really are no kilt police. If you feel more comfortable in a particular tartan, then you will wear it with more pride.

I feel this way about my beloved Leatherneck tartan. But I also really like the colors! I also have close ties to several clans (MacMillan for instance) that I really don't like the colors of their tartan. So.......

Wear what you want and do it with pride!