Perfect Idea. Even better if you use a table, quite traditional but still today useful invention: you don’t have to work lying in the floor. Makes it a lot more comfortable. To keep the screen propped up I used two wooden sticks of about 20 cm length with small feet made out of cork to make the construction more stable. I only removed the vertical Sync-cable, otherwise you cannot lift the screen that high.
The rest was quite easy. Thanxalot.