Joe..if I have enough supplies (no glue at the moment...) to make you a cover, sure I'd like to help keep your fish safe. Since I'm not a vendor and have no desire to step on any toes, I don't/won't/can't 'sell' the covers, then again I'm not giving them away for free either! I'll send you a PM to discuss it.
Dom..I vaguely recall seeing pics of the cover that was on that tank when Steve had it and it was part of the original inspiration for me & these covers. Maybe we can figure out a way to retrofit a door for you

Definitely want to see the shark tank anyway, and yes, those poor two now bruised brain cells you have left aren't far off the track on how to attach a cover to a tank with eurobracing or no lip at all. We'll come up with something for that too.
Yes, the shark lagoon..offline...lol I'm not letting you anywhere near my pond though!