If you run into weight issues how about reducing the weight of the motorcycle? Instead of the 1250GS, try a 650 GS at around 400 lbs. Just another option and still have a motorcycle with you. I understand the need for a bike with you during your travels. Having ridden for 50 years this month, I would find it hard to leave home without one.
2009 Essex - Bordeaux
2016 Mini Cooper S
2016 Moto Guzzi Stornello 2016 Ducati Monster 821 on a Hydralift