250-500cc Compatible Springs

Anyone know what company / model number springs would fit the 2007 TC250' Marzocchi forks?

I'd go straight through Halls and Bill's but i'm up in Canada and would prefer to find something local before bitting the bullet on the taxes / duties. I'm assuming Race Tech has something, but i'm not sure what size / model number i should be looking at.

Any help would be appreciated.

Thanks!