Easy peasy
Jack bike so front wheels are off the ground. Helps to have center stand and use a car jack to lift the front.
Remove brake calipers and fender. Remove wheel. (Note the location of the top of the forks -- both depth and rotational position -- on the top clamp because you want to get that back in the same position when you re-assemble.)
Loosen top and bottom triple tree braces nuts and slide forks out from below.
Use a hammer with a wooden block and gently slide off the plastic rock guards on the forks.
Slide the gaiters on. You'll see where one end slips over the little groove on the forks to register the right location. You might want to warm the gaiters in some hot water first and gently use a needle nose pliers. Make sure the little air hole in the gaiter is open, otherwise you will have bellows, not gaiters. Install the retainer clips (assume that came with the gaiters; if not, just use auto hose clamps and paint them black.)
Put forks back on (paying attention to lining them up on the top clamp as noted earlier), install wheels, brake calipers and fenders. Tighten upper triple clamp bolts but keep the lower bolts and wheel axle bolts a little loose.
Lower the bike, get on it and without touching the handlebars, push down on the gas tank to bounce the bike a bit on the front wheel. This will align it. Then tighten the lower clamp bolts a bit on each side until torqued. Tighten the wheel lug.
All that said, it is really easier than all that, and logical. Just take your time and you'll find it easy and enjoyable. Crazy to pay anybody to do it. It was the first thing I did on my 2013 mag wheel Bonnie and it kind of broke the ice for me in terms of getting used to working on the bike.