Here's an example of my "ultra inexpensive tank rigging." It's on a pony-bottle and not as "tight" as I'd make it with sidemount rigging, but adjusting it for SM would be fairly easy. Funny enough, the paracord rigging was meant to be a cheap hack on a pony-bottle I keep around as a loaner for other divers, but I actually like it better than the webbing-version you can see right next to it.
The easiest way to cover hose-clamps is "tubular webbing" material. Many of the dive-websites sell it, buy you can even find it on Amazon and various other websites.
View attachment 757490
View attachment 757491
View attachment 757492
View attachment 757493
WTF is that abortion?