You would have almost unlimited design possibilities using fiberglass. I was interested in DIY
Hovercraft a few years ago. Many are built using fiberglass. Do a google search I'm sure you will find someone who has built a fiberglass tank before. The one major area of concern that I would have is what kind of resin to use. Some resins are quite susceptible to UV
damage. I'm not sure if Hi-Power Aquarium lighting might affect it or not. If you want I can try and find some suppliers of cloth and resins that the Hovercrafters used. I've got the info somewhere.
AquaC Remora Pro
140#s Live Rock from LiveRocks.com
Frogspawn, Hammer, Zoos, Leather Frag, and Xenia and Green Star Polyp frags from fishfreek and Alarmguy66, Thanks!
Member of the Unofficial A-Team