Hello!
I LIVE with dog mushers half the year!
So I know exactly what you're talking about -- I live in Skagway, AK during the summer with a handful of mushers (and their dogs -- love how you point out that the dogs have different personalities, living with them you start to really see them as individuals!) while I either work with horses or drive people to the dog mushing tours. Believe me when I say I know at least a little bit about dog mushing already.
Sounds like a fun project! As far as pricing goes, the best sort of "estimate" that I could give you is that I normally charge $15 for an article of 300 words or less, $25 for an article of 300-500 words, and $35 for an article of 500+ words, negotiable of course; so if we're working together over a period of time, you could either pay me for a batch of articles/blog posts and I could write them and post them on a sort of weekly/monthly basis, which could be the most fun and easiest way for you to build a social media presence and really get your interests out there. I'm also a huge dog person, so writing about each individual dog's personality would be easy!
What does your website run on, Wordpress?
Let me know if you think we could work well together and we could hash out some details! I would love to hear from you, as this is a project that hits close to home!