How big were the bags, doesn't sound like much?
What color are you looking for, I have more that I can possibly use, I'll sell it to you for the 1990 prices marked on the bags + shipping .(about 2 bucks a bag)
The bags are 7oz, there's a mix of grays from fine to coarse, dark brown medium & cinders fine med & coarse.
I'm using the cinders now, but whats in the can will probably do what I need.
I did the freight yard & the two loops with about half of that big tin on the right,Vaccumned up a lot of the excess too, probably 4 bags. the coffee cans are marked 2 7oz bags, thats how I'm estimating.