I have a 52inch Turf Tiger, and i know my dealer sells the one that Scag makes. But i know that the other system they sell is made by Peco, stainless steel container that sits over the engine. The ones ive seen dont use external engines, they just run off of the spindles on the deck using a belt for running the blower.
I think the price of the Peco is $1700 or so just an estimate from my dealer.
Matt (lawnman)