[#19]

It's easy and basic, imo far easier than removing the top clamp. sure, you may have to remove the fairing but that shouldn't be a big deal.
i've dropped forks myself countless times and not once had any issues, you'd have to seriously over-torque the pinch bolts to damage the forks -in fact I don't even know if it's even possible to do so. imo.. The pinch bolts just need to be tight, whereas the stem nut should be properly torqued to spec.
As for the height of the forks, it's no biggy. measure the rise of the forks from the top clamp first before you lower them, use a pair of digital vernier calipers for your measurement if you want perfection. it's something you could be doing anyways if you want to change a bike's geometry and handling. For example my street SV has the sag set in the proper range but I found the handling too slow, turn in was too heavy.. so I dropped the front end a bit to speed things up.