Need 3 Spindles for 36" rear discharge deck

[Jeff Routledge 0]

Just got my first horse. B80 8spd. Solid tractor just need some sprucing up. Problem is, the deck that came with it needs all three spindles as the threads for the blade nuts are rusted away. Spindle housings and bearings are all okay. I think the model of the deck might be 5-36YR01, but tag is barely visible. The spindles measure 3/4" diameter and 6" in length. Are these spindles still available and does anyone know the part number.

[Jeff Routledge 0]

Should mention that the deck is a 36" rear discharge.