Here is a link for the MAFCA site for chapters in Washington;
http://mafca.com/chapters/WA.html
Here is the list for regions of MARC;
http://www.modelaford.org/pdf/RegionList.pdf
It would be best to see if you can contact a member of a club close to you to get first hand recommendations and anyh help you may need what working ion the truck.
Welcome to the hobby and best of luck to you!!!
Remember, the only stupid question is the one not asked!