ok, so I'm not a builder, just put 1,000's of screws in and out at annual etc.
when I was a kid, I removed the zillion screws from the typical Cessna's required at annual and other maintenance. Sometimes they would be frozen, underwing, and otherwise a real bear to remove.
in ONLY this instance, I would endorse an impact driver to remove them.
I've used a small 12v dewalt drill to remove and drive screws during maintenance of my RV, and as long as you turn the clutch down, so that it slips before you strip the screw head, and tighten the last few turns with a hand screwdriver, I can't see the problem with this.
If you overdrive and warp skins and strip nutplates, well, you'll learn your lesson pretty quickly!!!!
although kind of slow, I don't see why a good cordless screwdriver wouldn't take care of 90% of the tasks around the shop.
you don't really need the speed or weight and force of a big drill in most cases...and these little angle babies fit in places even a hand screwdriver won't!