Cleaning/painting his base will totally be practice, as I just noticed the straps screws into the base from Wayne's photos. Hopefully the little hut I have fits properly, as I can see the holes on the strapped tank's base are different too (round as opposed to oval on the one I have).
I keep thinking about pulling the rivets, they are almost 6mm (~0.22 inches). Pretty sure they are single cap and assume nickel plated but even if a 6mm single cap would look correct not sure about getting them set. I doubt I would try, so much stuff to buy to even try it.