This almost pristine mower deck

came with the 125 I just purchased. While I'm waiting to get a chance to rebuild the smoking and rapping engine on the 125,

I thought I'd get the mower deck spruced up a bit. It is at the sandblasting shop right now, and I'm expecting to get it back in a day or two. I'd like to find some nice used pulleys, and whatever else I need to put it back together. Although I managed to locate most everything I need on the Cub Cadet site, I will be spending more on the parts than I did for the entire tractor. Before I get too involved in this deck, I would like to confirm that it is indeed the right one for the tractor. My 125 was built in Sept 1968, and the numbers on the deck are: 481U1112. The PO said it would fit, and I'm pretty sure he knows his stuff. I would just like to find a solid reference for the deck numbers.
Thanks