Underbed Gas Tank

[67ChevyRedneck]

I have a 67 Chevy stepside...can't use a saddle tank...and I'd like to install a fuel tank under the bed. I can't stand the smell in my cab. Been drivin her for 8 years and I hate it. Also like to use the space for speakers/storage. Early Classic Enterprises makes a perfect fit tank with all hardware but it's a whopping $600. I already have a donor gas door for my stepside fender that matches the contour of it...I use my truck and I can't see having to drop the tailgate, get gas drops on the tailgate and wood floor just because it's easier to install a filler in the floor. I'd like a bolt in kit if anyone knows of a company that makes them cheaper.