That nice. You have done a fine job with this tractor. With no more metal equment than you have you did good. You look like you use your tractor for a lot of things.
Now I'm building gear box. It will actuate an independent drive shaft. It will have two speeds, 500 and 1000 rpm. It remains to establish the clutch. This shaft will drive a mower, pump on the tank, and other devices.