Matt,
Thank you. Although many members aren't "on board" with Pancoe (and understand why for certain applications) its tough to argue the logic of his recommended tank install. Guess you're aware, your install exactly follows his direction.
I'd say you were well advised. Most importantly, lengthwise support runners beneath the tank (hard plastic). And, their good height off the bilge. And 5200 instruction on bonding the runners to the bilge, then the 5200 bond from the tank to the runners....all Pancoe.
Good job. We have JJ to thank for the applicable link.