I did the same as Hooter on my 1688. I copied a 2388 system. I got the larger aluminum discs and paddles from a guy that posts on here as "Spreaderman" sorry I don't have his number. Cut down my discharge board, extended the hexshafts, bought the quik couplers from CIH and used conveyor belting to replicate a 2388. Very pleased with it. Wish I could post pics! It took me a couple trips to get measurements off the dealers new 2388. Craig