Located in New England 20x40 vinyl, cement wall pool is about 25 years old . Removing/replacing about 1200 sq ft of decking(cracks,lifting etc) new lines, skimmers, liner, coping and change sand to vermiculite (they call it grout). Pool materials and labor quote was 8k which i think is good. My question is decking. Quoted 5$ sqft for removal, is that a fair price? Also quote doesnt have cost of new decking im sure they recommend someone but what is a fair price for basic brushed concrete per sq ft? and does new deck estimate include prep work ie some type of stone or gravel under concrete ? Thanks for any advice you can give me?