$5000 isn't too much for that
I think she is getting an ok deal.
I bought my 18' Vougue 100% resin pool last year for $3200 installed.
I came w/DE filter, 1 speed 1 HP pump , baracuda , basic chemicals , and everything you listed. I didn't get a deck which could be anywhere from $1000-$2500 depending on size and features .. lights , power , plumbing.
If they are running power for you and maybe putting a faucit close to the pumps so you can put an auto-fill on it, then you are getting a great deal but I still don't think $5,000 is that much.
Looking back I wish I would have gotten the 2 speed pump but I am happy I upgraded for a DE filter over the sand and happy I upgraded for the hard-bottom floor. My slope in my yard was 10" so they charged me extra for that too.
Stephen
Re: New Above-Ground Pool?
Well..the ground is excavated and laser leveled! Pool will be here Tuesday. Unfortunately...No installer! I'm wondering if I can handle this install on my own. I purchased stone patio blocks and have read three different installation manuals. I'm scared but I think I'm gonna attempt it...any tips??:o