Well I did it! I installed the Flanders bars (#650-08783) on my '06 RSTD. It took a few hours, but was not too bad of a job. You will lose the bar ends, but I also installed the Kuryakyn ISO grips with about 1 inch overhang and wound up with about 3 more inches of pull back than stock bars.
The clutch line and left side wires were plenty long, but the brake line and right side wiring was too short, so I pulled the gas tank back about 6 inches to remove the left side neck cover and released the cable ties beneath the tank and that gave me plenty of slack. I also routed the throttle cables under the speedometer housing to get additional slack. I pulled the headlight housing off so I could see the shortest route to run the wiring and cables to try to keep from buying new ones.
I also routed the brake line around the right fork to get the needed length. It is covered by the windshield and is completely safe. I used the Yamaha billet cable guides, these are the only ones I could find that will hold the wiring and brake/clutch lines.
These mods were not very difficult, just a common sense hunt to find alternate cable routing to get the most slack available. I did take my time to insure it was done correctly and safely, after all, I'm the one who will be riding this bike! E-mail me and I will be happy to send some pics or answer any questions about how I got from there to here.
This is my first posting, but I want to help anyone I possibly can. I have learned a lot from the many postings I've read and got a lot of enjoyment from being a part of this great family of bikers.
Thanks,
David