Wouldnt take that long to remove, itīs just quite fiddly - say 30 mins to an hour to remove depending on how handy you are...
Putting on for the first time is more fiddly and if you are putting on side and back rack it does take longer.I put on the back frame first on the Saturday, and ended up having to then remove the same screws that I had already removed once already (to put on the back frame) to put the side frames on again(on the Sunday). Tell me if that doesnīt make sense written down ?
Also itīs easier if you have some help since as I say itīs fiddly and there isnīt much room for the tools to hold the nut whilst you tighten the screw.
+1. I have both the PLX447 (Givi) and KZ447 (Kappa), and it took a bit of time. I, too, also had the back rack already mounted, so I suspect it took longer. For the left rear turn signal, the stock wiring is just a bit too short for the relocation bracket. You can either figure out a hole to drill to re-route the wire, or splice it. I spliced. An extension cable with a female and male connector (if you can find them) would be the best solution, as it would allow an easy return to stock.
For the right turn signal, I just re-routed it up the right side of the bike by the frame. Do yourself a favor and set up the lights first before adding the side racks. You can then remove much of the plastic from the rear, which makes it easier to route the cables (well, it did for me, anyways).
However, I have the racks on the bike, and I don't see any need to remove them. I don't think they look bad, even without the cases.
From the left:
From the rear:
From the right:
Note: I added black reflective tape to the arms for the rear rack when I originally added it to the bike, which is why it's white in the picture.