Looking deeper i was able to find a place for replacement knives call Sickle Service.
Seems the Knives are a little different then the ones for Jarie, what we used to replace the Knives on the David Bradley.
The Simplicity knives were 2'' x 2 3/4'' with 3 rivet holes, were you able to find another source for the knives for your sickles ?
Steve has a 5 foot sickle bar for his Gravly packed into the barn, he used it in his field when the grass got too tall.
I have horses also, hay is higher then hell in price, every little bit helps.
Yes I was able to get blades, stone guards, rivets and pitman bar at tractor supply. John Deere still sells most of the other parts you just have a long turnaround. I have found one for a Gravely but the guy wants a lot for it. Yea the price for hay high, so to help, I plow my pasture so the horses can get to the grass easier. I bet I plowed 50 acres of pasture so far this year with my Gravely. Do you have a baler, tedder, rake, ect.? I'll have to check out Sickle Service and see what they got.