DIY rack hardware source?

[Mille162]

I’m looking to build a version of the Salamander Archetype rack. Mostly, because it would be fun. Instead of buying a new sports car for my mid-life crisis, I enrolled at CIA and will once again be a college freshman living on campus. I bought a Mcintosh mha252, MT-5, have another MR-78 in Terry Dewick’s hands and a pair of Egglestonworks Fontaine’s...you know, just a basic dorm room stereo, lol! I want to build a slim profile rack that uses Boos butcher boards for shelves to fit the culinary theme. I know it’s not ideal as a shelf material, but Im not that concerned as the whole system is a compromise (esp the room; single suites at CIA are not very large by any means)

A quick search turned up a few generic parts but I know there has to be a go-to source for the quality components used in building rack systems; feet, brackets, posts, isolation cones, etc.

The Salamander Archetype is the design I’m trying to copy, it’s basically threaded rods with washers and bolts holding up wooden shelves the rods oass through.

Does anyone have suggestions for sites selling multiple options of adjustable feet, isolation cones, or other generic rack hardware?

I’ll prob just go with the long threaded posts as that’s easiest but also wanted some options for feet and maybe making 1 shelf more vibration resistant for the turntable. Im thinking 4 total shelves with the bottom being tall enough to hold some vinyl and the mt-5 sitting on top shelf. Was also going to do a reinforcing layer of carbon fiber/resin on the bottom of each board as the butcher blocks have a tendency to crack over time if not properly oiled and maintained.