I stripped the EB relay kit from my old '09 Wee prior to trading it in, as the stealership declined to proffer a higher value for farkles v. no farkles. Removing the harness? 15 minutes. Installing it on my '15 XT was only tricky in one respect: routing the wires under the tank without popping the tank off the bike. A straight piece of 14ga solid wire threaded things nicely under the tank and right back to the battery. Total time was about 45 minutes, including the zip ties to tidy things up. Headlights are brighter, switch gear and connectors are protected, and if you squirt a little dielectric grease on the relay contacts they should last longer than the bike.
Being slow doesn't make a boring bike. I had a R1 which I thought was boring. Boring is a bike that doesn't speak to you. If you like what your bike is saying let it's voice take you to far flung places. - Vertical C