Hi, welcome to our world. Sounds like your going to have a great winter restoring your new toy.
THis forum is the best for helping you with any questions you might have. Hint, take pictures and post them.
There is a Camping World in NH but not sure how close to Manchester it is, but they are also great about answering questions. They also do safety inspections, and repair work that you might not feel qualified to handle.
Since it is winter, I would check for water leaks as water can be the death of an RV. Check corners, walls, around vents and windows and one project you might want to start with is to recaulk around the vents and check your roof. A hardware store could tell you the best product to use.
Again welcome and glad you found us.
