You need to decide whether to even spend the money for a loader. There are after market loaders available in a variety of sizes from Koyker, Woods, etc. but at $4000 to $6000 each you may wish to go tractor shopping.
There is a chance you can find a used loader for it but expect a long and slow search. I would try to find someone who parts out tractors. But you may find them on the large internet search engines for farm equipment like tractorhouse.com