I have an either/or proposition for you:
1. Find a used pneumatic electrified drafting table at a surplus store. What used to be the $2000 to $3000 dollar variety can be had these days for around fifty bucks, since all the fancy pants architects have turned to computers.
I’m considering one for myself — thinking I might additionally add a hinged plate to the top, so that it can be used additionally as a traditional drafting table, yet have a level platform, on which to place my wonderful 22” Sony monitor. The only problem is moving these beasts. They can weigh upwards of a couple hundred pounds.
2. What I use now are two 36” tall filing cabinets, with three 12” x 72” pine boards held together by 1” x 2” pine strips, which fit snugly against the outsides of the filing cabinets. (These boards will soon be replaced with quarter-sawed, tongue-and-groove oak)
Filing cabinets, like the old drafting tables, can be had for $5 to $15 each. Offices are dumping them, in favor of digital storage. The outsides, you can either paint with your own designs, or apply decals from your printer, or……
With either of the above, you’re free to stand up while working — just like designers and art directors in the old days. It’ll help keep you from developing the posture of a snail, and free your thinking as well.
Conceptualize differently.