We have a 2002, rear bath Lazy Daze, and we love it. There are times we discuss getting a newer model but we have never had any issues with our rv, so we keep deciding to hang on to it. It is wonderful. Now, we do keep it well maintained, which certainly helps.
My questions would be-how well do your (or your wife) know your daughter's friend? Has she been over to the house enough so that you know what type of personality she has?
Does she seem like the type of girl who would enjoy a week-long camping trip, which would include using a bathhouse to shower in?
Are you going somewhere where there are activities for the girls to do that will let them stay busy?
And, while I understand the concept of the girls being flexible and adjusting to you-what about-are you and your wife flexible enough to adjust to the noise, staying up late, mess that two fourteen year olds can make?
I understand your hesitation-this trip could go either way.
How old is your son? We first started rv'ing when my daughter was ten. I threw a pillow and a sleeping bag up into the cab :), and she did the rest. As she got older,she felt like she needed more cushioning, so we got her a foam mattress pad.
I tent camped a bit with my aunt and uncle back in the 60's when I was around ten. Decided I didn't like camping. Then, tent camped with a friend in my early twenties and remembered why I didn't like camping. Then, in my mid-thirties, we rented an rv and drove it to Maine for a week's vacation. After that trip I vowed to NEVER camp again. Enjoy and camping were not something I could even remotely see as being in the same sentence.
Later, when I was in my forties, we adopted a retired racing greyhound, and I fell deeply, madly in love with that dog (and she with me). Every time we went on vacation (we even had someone come to the house and dog sit) the dog got sick (wouldn't eat, vomited, etc) and her hair would start falling out.
So, fate had me consider rv's. We bought one, loved it, as did our dog, and we have had the best adventures ever.
Our rv has been the best, financially unsound decision of our lives.
I am going to do a bit of generalizing here:
MOST Lazy Dazers take great pride in their units and maintain them to death.
MOST also keep copious notes/records of their work.
It is not uncommon to see Lazy Dazes from the 1980's still on the road.
It is hard to find units in the east.
I would suggest that you head over to the Lazy Daze Forum and post your question about the leak. The owner of the Lazy Daze might even be a member of one of the forums.
You mention that someone was going to fly out to see the unit:
We had a 23 foot Lazy Daze and wanted to buy a larger 27 foot unit. We saw a unit that interested us in California. We called and spoke to the owner. My husband flew out to California, the owner picked him up at the local airport, they went to the owner's house, my husband examined and drove the unit, and then gave me a call. He thought the rv was solid. We gave the man a down payment, my husband stayed the night at their house, and was taken to the airport by the family the next day. This was a 2002 Lazy Daze that we bought about ten years ago. We still have it and love it.
We live fairly close to Lancaster and travel there quite a bit. I don't think(could be wrong on this) that Beacon Hill has pads or paved roads, but I would say it would be a good place to get out of the rain for the next few days. It is on a hill, so the rain shouldn't be a problem. In addition, it is a great campground.
It is also near the town of Intercourse, and otherwise a central location to the area attractions.