I'm sure someone will have one, but they will need sizes. I'll assume your'll want about a 15 gallon tank if your running a 90 yam. Also what is the width between the hogs, you don't want to get one that doesn't actually fit in the boat.
I can make new a new one, really the best long term bet ... PM me with a sketch and I will do you a keen quote. We make about 1,000 marine tanks a year so we should know what we are doing...