seat boxes

i been on the hunt too. cause of prices, i gonna have to try to build them myself. i was thinking of going with smaller boxes, like these; http://www.boatbox.com.au/images/fit...tout%20010.JPG
i dont realy need the livewell option. just wanna put fresh water washdown in one, and storage in other. but if we can combine our resources and come up with a more affordable option, i wont be that picky about what style. tx