The GL1100 in any guise is a rock solid dependable motorcycle if properly maintained. Remember you're looking at a soon to be 30 year old bike. Parts are available, but can require some time and legwork to source. If you can access service records that is a big help for you. Valves on the 1100s were screw adjustable and the rest is pretty straight forward m/c stuff. The biggest thing in your way now is accessories (I realize its a standard) like luggage racks, windshields, seat options, highway pegs etc. Depends on how much you want to 'comfortize' it. Welcome to the site.