I know this is an old thread, but I found it on a search and maybe the next person will too.
That video was helpful to see how things come off. I installed a toggle switch for some ROPS lights and put it through the optional horn hole in the dash. The next step to really get the dash off is to remove the steering wheel.
the triangular plastic cap on the top of the wheel pops off by pulling out. There's a 17mm nut holding the wheel on, and I used a cheap gear puller to pull it off.
I put it back together and I think it was just the two bolts on the bottom, either side coming up vertically. I also took the chance to clean the parts in an ultrasonic cleaner