best amp platform/stand under VAC Renaissance 30/30 300b amp?


I have  vertical equipment rack that isnt very expensive but it is solid and has mass-filled pillars and mdf shelves. I have a slab of granite under most components, some with cones  between the component and the granite.
I have a good bit of headroom above my amp and would like to get a better platform under it. Any suggestions? I am pretty handy and could make one... Or buy one used if it werent more than a few hundred dollars. I am considering a thick butcher block, as one possibility. Thoughts?
montaldo
Use your current rack, but place the amp on a Starsound amp stand. They are amazing, and you will hear a positive improvement. 
Check out butcherblockacoustics.com
New line just debuted at T.H.E. Show Newport 2018.
Highest quality at very affordable prices. 
There are or were several Ikea products that worked very well as component stands. I remember reading about them many years ago, unfortunately I don't know if the products are still made.