Hi Gurka, try the Ketchikan sectional, there are a lot of cabins marked on those, but be aware that ORBx's patch for PF due out soon does add in a good many cabins as well, so you might find some duplication, I have no idea which cabins they are going to add.
You can get a sectional chart from avsim if you don't already have one, search for Matt Fox, he uploaded the whole USA VFR sectional and Terminal charts.
Also check the RTMM map room, I do believe that there is a direct link to the Ketchikan sectional in there as well.