Great equipt stand for under $500???

Have you considered a DIY butcher block rack ?
Its easy to build and very effective, you will have a top notch rack at a minimum of cost.
There are a bunch of ideas for butcher block racks online. 
6 slabs cut to size can be found on ebay or online at a place like this
https://www.hardwood-lumber.com/cutting-boards/
Depending on the thickness and style you choose with shipping it will run close to $500 but the only other expense will be threaded rods, nuts and washers from Home Depot and a few holes drilled. 
Greg
GT Audio Works

I have a Room Tunes Deluxe Justarack sitting in storage sitting in storage that might be what you’re looking for.  It is a five shelf rack approximately 42 inches high with extra deep shelves approximately 19 inches.  The shelves are each 1.5 inches thick MDF painted in a black satin finish.  Each shelf is individually adjustable via threaded rod supports.  The rods are coupled to the floor with massive brass spikes.  It is very good sounding rack, very stable, and very heavy.  Appearance is more to the functional side and would not be considered a beautiful piece of furniture.
Shipping would be in multiple boxes and likely not cheap but still should be within your total budget of 500.00 for the rack and shipping.  I’m in AZ.
 I don’t currently have photos since everything is in boxes.
 I don’t know if Michael Green still makes these or not.

Excellent suggestions everyone! I'll look into the above. Thanks again

@dill @sfar 

These are nice!

https://www.amazon.com/Audio-Rack-Silver-Cherry-Shelf/dp/B0007ZQSDG/ref=sr_1_3?ie=UTF8&qid=15345...