Salamander Archetype: Can they be "bridged" together?

Thanks Steve.
If I remember correctly the all thread rods are 36" long and 5/8" diameter.
Mine are stainless which cost a lot more than the plain galvanized but look a lot nicer and the nuts screw up and down on them a lot smoother than they did on the galvanized.
Yep I was playing with these rods and nuts in Home Depot quite a while before I decided which and what to buy.
5/8"  was thickest they had in stock and looking at it maybe 3/4" would have been even better.
However my rack is sturdy enough and as you can see I left room at the bottom for the amp which sits on another home made little stand.
Perfect?
Heck no.
Cost effective?
Hell yes.

Thanks for the tips, Uber.
This gives me a good direction.

https://www.grainger.com/ 
has a very good selection of threaded rods, nuts, coupling nuts and washers.
Including diameters up to 1" (and larger),
stainless steel, brass (and other materials),
and a variety of lengths.

You are most welcome.
Yes Grainger would likely have yielded more choice but I am not known for patience and once my mind is made up to do something I want it done yesterday... lol.
One big advantage of home brewed is that you can design it to be any way , shape or form to suit you. Within reason of course.
Good luck with the project.
Have fun and stay safe!