Regarding lifting the fuel tank:
I found that the chunk of 2x4 often interfered with working in that area, and could also possibly be inadvertently dislodged, so now I use a strong, soft length of braided rope, looped over the tank's front bolt flange, and with the other end secured to a strong attachment point at the rear, such as the cross bar of the passenger grip, or my luggage rack. I only use the 9" wood prop to hold the tank up while I secure the rope tie.
I also use an old sweatshirt, with the sleeves cut off and held on the tank with a couple of magnets, as a finish protector. (the sleeves make excellent muffler protectors.)