the trucker is a great bike. If it fits you perfectly then I would not mess with it and instead I would try to replace some components like get a second tubeless wheelset (carbon wheels) for the day rides. Coupled this with carbon seatpost and handlebars and maybe lighter bike racks (you mentioned light touring for which heavy duty racks might not be necessary) and You will save 5 pounds quick. If You decide to go on a rougher tour or longer tour where you would feel better using your original wheelset then you can simply just swap wheels.
OTOH - YOLO - having more than one bike is great too, especially if you ride often and the one and only bike has to be sidelined due to some maintenance