Thanks to James Clough for a great design and YouTube video. I am going to use my single 7" tank version with Mike Paniagua's welding cart design https://www.langmuirsystems.com/fireshare/filing-cabinet-welding-cart . The top two bends are at 110 degrees and the bottom two bends at 90 degrees like James did.
Welding Cart Bottle Anchor by James Clough
7 hours ago
7
Basic
weld welding tank bracket support