I had a 42x22 free form in ground pool built this summer. There is also a spa on one end and a 6ft wide rock waterfall near the deep end. The deck is dry set travertine. One company has provided me with a quote for the cover (GLI ProMesh), installation and closing of the pool for $6400.00. Does this seem reasonable? I spoke to one other person who said that the cost of the cover would be approximately $4k, so I figure with the anchors, pump, springs, plus installation labor and pool closing/chemicals etc, it seemed about right..... or am I way off?