boodie:
HD controls on the R* are a pain and increase the size of the project by at least 2X. Some have done it already (better men than I)...

R* controls are the easiest way to go. You may find that the new bars don't have a hole on the back to lock the controls from turning. You can simply grind the spot inside the controls smooth and make them tight on the bars.
If you're going to run wiring through the bars, you need to have risers that are separate. Not the one piece R* riser. The older style are two piece.
Also, for what you'll need additional.
1. Extended wiring. Good advice to go extra long. You may want more ape once you're hooked.
2. Brake line. You're effectively adding 5"-6"+. You may need a brake line that's a couple of inches longer.
3. Clutch cable (optional?) You may be able to re-route it a bit so it's not tight.
4. Throttle cable. You may be able to re-route it a bit so it's not tight.
It's a fun project. I've done it twice this year. Once for Beach Bars and once for Apes.
Rich