I found thick laminated table top that came from a school, sometimes the used furniture stores has similar stuff.
I used 2x4s for the frame then bolted it to the wall and anchored it to the concrete floor, it doesn't move. I made it 43 high for standing but have a adjustable bar stool that works for sitting.
Feeling cheap? I've seen your set up, just frame under it raise it up and get oak 1x6 or 8 or 10,,trim boards.