No risk that straps and ropes will scratch the paint, damage tank? A rope can vibrate paint away, cause dents.
I have transported my bike by attaching straps on frame only. Tight it hard so fork will dive. Bike on side stand, not possible to move forward-backward. Important that it can not jump so side stand will retract. For really long transport, make a wooden box around bike that keep it in position with bolstered areas against bike hard parts.