Nice video. I changed my tractor tires last year (12x28) with the same reasoning. The "fun" part was emptying #400 of liquid ballast in each tire and trying to get the partially filled tube out. I had to do all this by gravity, no pumps. To break the bead I had to set a 6x6 post on the edge of the rim, put the weight of a vehicle on the post, and then use a #50 bar directed at the end of the post at the bead. I'm sure there is an easier way but it's what one has on hand.
