I worked under a similar setup currently in my cold room. I have 3-15bbls tank and 7-7 bbls tanks, Four out of the seven are actually elevated above the floor to take advantage of vertical space. Two are stacked above tanks which I usually either use a ladder or climb the scaffolding in order to hood up attachments or clean. I'll try my best to post a picture as soon as I can.
Franklins Restaurant,Brewery & General Store