This is the setup I have -- specifically the wider setup shown in the bottom row of pictures. Works great, been using it for about 8 months now full time.

But if you're going to try standing, please save your body and use an anti-fatigue mat. It makes all the difference. I use two stacked on top of each other.

Yep, it is just that there is no IKEA close to my place (yet), and I wanted something quite robust :-)