Contact. north and south america. specmar, inc. sales. specmar, inc. p.o. box 1081 scappoose, or 97056. phone: (503) 543-7562 skype number: 1-503-298-4462. Authorised bruce roberts international yacht design web site operated by bruce roberts-goodson the designer, plans and kits for sailboats, powerboats for building in. We have boat plans (both yacht designs, catamaran designs and power designs) for all sizes for the amateur boat builder and professional boatbuilder..