Congratulations!
It sounds like you did well, I believe from your description that your pool will stay upright, and it sounds like you have your top seat installation figured out - at least you can go shorter - imagine having to make the top rails longer....hmmmm....
AND - according to their webpage, both the pool you ordered and the one below it should come with resin rails. wondering what pool you actually got....which is making me wonder whether or not it doesn't fit because of receiving the wrong pool parts
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