It is very easy and not that expensive to emulate a "sculpture". While they are certainly nice, all you are really trying to do is make beer so you dont need all the bells and whistles these sculptures offer. Have a local Welder/fabricator build you a three tier gravity fed stand and you wont need the pump, although those small pumps are relatively inexpensive. If you are planning to do simple single infusion mashes it will be easy. Even if you want to step mash simply have them attach burners to each vessel. A restaraunt supply house should have some nice big stainless pots that would work. Add some thermometers and some stainless valves and hoses and you should be good to go. The Beer Beer and More Beer sculptures are overkill imho, maybe Im just jealous but most brewpubs (including mine) dont have the kind of control those sculptures offer and we do fine. Just my two cents........
"You are what you is." FZ