I like these tubs from Lowes before they started making them grey. I just wish they were about 1" more shallow.
There is only one tub where they're starting to chew on the lip, but they are only able to because there is a larger gap there. Make the tubs fit snugly and there won't be a problem.
I say your DIY post on the forums and really liked the look of what you did based off of MarkS stuff. Now do those have any rivets on the bottom or are they completely flat?