@mulveling Is absolutely correct in his proposal to look into having a Support Structure that is rigidly locked in place, and a local wall with a Isolation between wall and rack is an ideal place to start with. It will most likely be all that is required in certain environments with a certain type of TT in use.
I have a Rack seated on a purpose produce Base that is built from 4 Tiers of Materials. The Rack is rigidly locked in place. The TT is mounted on a Purpose Built Sub Plinth Assembly that is also a multi tier design.
Aesthetically the tiered platforms at both base and under TT could be tidied up a little bit, but I like the honesty of it, and to let others see how easy it is to put in place a design that has a real impact. My tiered supports are photographed to record their structural configuration as much as my system is by visitors.
As said I believe there is enough in place to create a very positive impression, and not having spent any where near the monies these commercial offering command.
Also interesting to see how large monetary outlays to acquire a rack, has not been delivering a satisfying experience when put to use in a certain type of environment with a certain type of TT.
With a TT, it is not typical that a design used as a supporting structure is ubiquitous in its values/failures when used in a variance of locations.

