When I bought my tractor , it did not have the 3 point arms on the back . It came with only a belly mower . The upper lift arms were there but nothing else . I ordered a set from SG Tractor and I think they were around $275 , I forget . My MT372DT would have come standard with a catagory 1 when it was new . I had a Satoh just like the one you have with the catagory 0 arms. As I remember , the mounting "pins" at the bottom of the rear end were smaller than my Mitsubushi . The arms are availlable but I'm unsure if the "pins" would hold up . The lower arms I put on my tractor are offset to fit the implements , already bent . Any of the dealers here can get the arms for you . On E-Bay there is always somebody selling 3 point kit for compact tractors , just search for Yanmar , or , Mitsubishi tractor and you'll find the kit . Or check with the dealers here.