I have a 2007 Fatboy with the detachable sissy bar and I did have to relocate my rear turn signals. Initially I purchased the kit with the intention of installing myself. However, when I opened the package and read where I had to remove the rear wheel, I neatly repackaged the contents and took it to my local indy shop (who does all the work on my bike) and had them install the relocation kit.
If you decide to do it yourself, good luck!!