were can i get cheap port holes?

you can make your own - if you just want the light and view but dont care about opening it is really easy, but it is possible without too much trouble to make opening ports
keep in mind that drainage to the outside and weathertight seal are the most critical points to focus on
closed ports really just require plexiglass although lexan is much better, epoxy, and trim - cut your hole in the shape you want, epoxy the lexan or plexiglass over the hole trim inside and out keeping the lower edge on a downward slope so water does not collect on your trim, and paint it to match your boat
opening ports require you to first make an opening port that will seal, then using the concept above, install it --- you will find that 3m 5200 and epoxy are your best friends, do not be led astray with the polyester resins -- they will not hold up
opening ports can be made of wood,fibreglass, metal, or anythingyouare familiar working with - look at the ones available commercially and redesignfor the shape you want

charles unlaub
July 2008