One more thing for you to try LBR.
If you have a Tractor Supply Store, or Quality Farm and Fleet store, they have rubber boots with "over-sized" uppers. Also, masonery boots would fit your criteria, but most will be in odd colors. My dad has a pair that I know would be what you are looking for that were bought through a mason supply, but the name is wore off, so I cant tell you the brand.
He has problems getting the boots back off as well as you do, so needs the boots with large uppers.

As far as the Muck boots, Chris has been wearing his on the farm for over a year, cutting hay, and shoveling cow pies, and they are still in great shape. Hope this helps you out.