We live 60 miles south of Lubbock, TX. Shopping at Home Depot, we found that they don't carry some of the brands of toilets that you mention high on the list of good ones. However I may have found one number that seems to match one of your choices: Cadet-4112016020-tank, and the bowl: 3454016020. I think the one you listed was the elongated, wouild that make a difference on it working better?
What is your opinion of the Eljer Patriot: tank-141212000,and bowl:131212000 that one sales person had said was the best??