Where can i get plans for a shed for kayaks and equipment.?

I am building a storage shed for Bok Academy, the local middle school for my Eagle Project. I am looking for some plans for building it. The shed needs to be able to hold 40 single kayaks, paddles, life jackets, ect. I would like to, if possible, put the shed on skids because the terrain is very flat (if the water rises 1ft in height it will be 20-25 feet distance wise and the lake flucuates alot). If you have any ideas or tips please leave an answer.