Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories.. I had a gladesmen that originally came with a poling and casting platform. i opted to remove the poling platform and either poled or used a sup paddle from the bow. 19. 2008 skiff, 18′ – $17,900 – sold. another happy panga marine customer is coming back for more! this boat was traded in on a new panga, and it is sure to sell quickly!.