A few people have been scammed on the site, Only use paypal to pay for items for sale by other members. If they will not use paypal, its likely a scam NEVER SEND E-TRANSFERS OF ANY KIND.
Use some soapy water and find the leak. Check the bead area. My NC leaked at the bead when new. Had to dismount the tire and clean the rim. It has been fine ever since.
My calculations could be flawed but I calculate 22L Frunk, 2 X 29L Saddle Bags, and a 45L Top Case. This gives a total of 125L. The old Goldwing had 150L of luggage space and the new one has 110L. Does our NC have more luggage capacity than a Goldwing?
When in Berkeley Springs take the time for a soak in the spa Berkeley Springs State Park, have a coffee at the Fairfax House, and have some barbeque at the Earth Dog Cafe. Try the fried green beens!
Be careful with silicone and electronics. Many silicones secrete acetic acid as they cure. They will corrode and kill circuit boards. There are silicones made for electronics.