Both hatches cost $167.34 or a mere .18 BU's.
The large port glass cost $35 and the smaller port glass $25 each.
They installed the glass in the frames in their shop. I removed and replaced the frames on the boat.
Brackish is correct, were I to use Lexan or Plexiglass again, I would cut out the pieces myself. However the glass should last another 30 years without replacement, barring any errant blocks or winch handles.