I replaced my own shield. It's not so hard really. Still considering if I will sometimes swap from one to the other. It is easy enough to do that without much trouble.
See my thread that includes my shield replacement HERE.
Do check out my photos on Flickr and read the comments on those photos for additional information.
There are a total of 3 plastic body parts to remove to be able to replace the shield. You only need to pop off the
front mirror covers (they are held by snap fittings. I don't totally remove them but just let them hang), then remove the two top snaps
on each side, then the front garnish can be removed (slide forward a bit to unclip from headlight tabs). There are 2 Dual-Lock strips on the factory shield. You will need to either move these to the tall shield or (better) buy some. I bought mine at the local Radio Shack, called Super Lock but the backing says 3M Dual-Lock. Also, you will need to move the 2 center expansion nuts for the shield from the top set of holes to the bottom set in the bracket for the tall shield. Then just put it all back together in reverse order and you're done! :smiley-happy0034:
If you're not so sure of turning screws on this bike then do have the dealer do it. It really does only take about 15 mins if you are familiar with the parts, 20-30 mins at the most if you take your time like I did.