Salamander Archetype: Can they be "bridged" together?

Yes, I am planning for a 3-1-3 shelf setup, with an amp stand on the floor in the middle.

I like your idea very much:
"...make your own for next to nothing, and using larger diameter rod and laminated butcher block type shelves..."

RODS:
Is there a vendor that you like? I took a quick look a few weeks ago, but did not find anything completely appropriate.

WOOD:
We have McBeaths (a wonderful hardwood dealer) in my city, and will look at them for the shelves.

I like Butcher Block Acoustics very much. I will take another look and see if I can make that work.

Looking to place my Turntable, Full Size Phono Stage, and Power Supply on the left; Digital sources on the right; and Pre Amp and Amp in the Middle.

The amp is 17wx21dx11h (and has 10 tubes). I want the preamp on a shelf, well-above the amp.

Nice work, Uberwaltz!
https://systems.audiogon.com/systems/6466#&gid=1&pid=3

I will take another look at Home Depot's hardware supply capabilities.

What is the diameter and length of your rods?

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.