Pine is not the best choice for rat bedding. I know people swear by it, but pine is very comparable to cedar in many respects.
The only pine I would ever use, is pine pellets like Woody pet, Equine fresh. The process used to make these pellets effectively removes most of the harmful phenols, acids, oils and tars that can cause respiratory and liver disease. They absorb moisture and urine VERY well, a little goes a very long way, and I think it is the BEST choice for odor control. Shavings of any wood just don't touch it in my opinion. Love the pellets! (nursing moms get a pile of aspen to nest in )
For rat food, I use Mazuri 6f made by Purina. I love it, and it's relatively cheap for me. Find a purina dealer and they can order it for you.
wow, i just called tractor supply and they have that stuff in a 10 lb bag for 4 bucks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!