I replaced the one on my 555 last year. You need to put enough extensions together to sneak behind the starter . IIRC the bolt is hidden and getting it started was way worse than getting it out.
I have a print for a farmtrac 60 but your welcome to have a copy I’m not sure if it’s for my ft60 but it’s all I could find I’m looking for a print for my ft60
What is a FarmTrac 60? I have a small model of one, or as least something with FarmTrac 60 decals on it, made of sheet metal. Typical India hand-made simple construction.