I am curious, the epoxy liner isn't that much relatively speaking. I mean, it cost me ~$100 for my plywood build. I spent $300 on the wood itself and $150 for the donor tank. If I'd bought the glass outright it would have been close to $500 or so I bet. The liner isn't the pricey part of the build I'm afraid. Another thing is they WORK. You could try other methods, but if they fail within a couple years you lost it all plus your stock.