Russ..... A Royal and a Kirby are very similar. BUT Kirby's "HAVE" tools, poor as they may be to setup. And they also have a HUGE marked of super cheap used vacuums. Some are so cheap.
Even if the Kirby itself is not for you, given the cost to try one out, would not it be a good inexpensive way to see if something along the lines of these commercial big foots is really going to work for you?
It really is more like mowing with either a Kriby or Royal, less vacuuming, more mowing.
Consider a $50 experiment, because if you can't hack a Kirby, the mister Royal, light as it is for it's size, will obviously be out of the question.
Grant