Longshanks, that's a simple and extremely good idea.
Most kitchen worktops are set at a height useful for the average woman - I always find them just too low (and I'm only six feet) and I tend to get a stiff back after an hour or so in the kitchen.
The best surface I've ever worked on was a raised "layout & cutting mat" table (double-A0-sized!) in a graphics department. It was about 110cm from the floor, was something you could walk around, and ideal (for me) for standing at.
If space precludes "several" different height worksurfaces, I would suggest thinking about a single, adjustable one while the workshop build is going on.
Andy