The Nauticus Canal Cruiser

My husband and I have just bought a Nauticus and we know absolutely nothing about boats so are learning as we go along. We need three windows replacing and the boat yard has given us a quote for

Congratulations. Likewise we bought our first cruiser, a 22 foot Nauticus "Waltzing Matilda" 3 months ago. We managed an eight
mile round trip on the Lancaster Canal before the winter set in, so naturally we now consider ourselves experts!

Looking through the old bills from the previous owner I've found a receipt for two windows (730 X 490 mm and triangular 380 X 150 mm) in toughened glass, dated 03/10/08, total cost