Where can I learn about the ordering page options and choices such as tank or bottle and stabilizers and the leg sizes? Any information? When you say tank, does it refer to propane tank?
A good place to start is the FAQ under Support tab at https://outdoorstirfry.com/faq/. At bottom of each webpage, there is a textbox to “Search Entire Site”, type in “difference tank and bottle” and see what you can get. On each product page, scroll down a bit and click on “Additional Information” section, it should show product dimensions.