Hello and welcome,Old76man! Happy to be able to welcome You to the Router Forum. I don't have one, but I know that BJ has one that He built. I would try to help, but would be not that knowledgeable. This message will bring You to the top of the page and others who have one can reply. They don't look that hard to build, and Your farm experience will be an asset as You build! And if You can, a name added o the profile page helps us all to be available for Your progress. Have a Great time here.
John 3:16 Please fill out your profile, It helps us to know you better