When I ordered my B7800 two years ago, I asked to have Top-n-Tilt added to the machine. So the dealer ordered it, and it was installed at the factory by Kubota. It added $800 to the overall cost of the tractor.
Here are two photos of the installation. I apologize for the poor quality, but they were taken after dark, in the dark, inside my shop building, so they aren't as good as they'd be had I taken them in natural daylight.
Anyway, my son uses the TnT setup to great advantage when using the box scraper to cut roads through the overgrowth on his uneven and hilly property.
Note that I added "Rhino Wrap" to the hoses to prevent abrasion of the hoses from constant movement, and from rubbing against the back of the operator's seat.
Note also that the hoses get quite hot during operation, so it's not a good idea to let one's right forearm drop down onto the hoses atop the right fender. They are almost hot enough to burn one's unprotected skin.
Finally, although I didn't photograph it, note that the factory ran the hoses to the valve block by simply running them from up front and passing them over the right step platform on the tractor, thus exposing them to some wear...although I am too big to get on and off the tractor from the right side anyway, so that's a minor factor for me.
