These backer levels are weird. E.g. 9 bucks for pdf. Then for another 6 bucks I get access to, but have to pay extra for, a "at cost" softcover, plus shipping. So another 6 plus shipping which is likely another 5 to 7 bucks. Not to mention you are dealing with a middleman to get your items printed.
This doesn't seem to be a very good value or well put together, like many KS rpg projects are from companies like Goodman or the Frogs.