It's not required to have a new triple if you want clip ons, but if you need a reason.......
![Wink](http://ducatimonsterforum.org/Smileys/classic/wink.gif)
You may/may not need the spacers for the master cylinders - to avoid clearance issues between coffin reservoirs and clip ons.
Jeff at MonsterParts will probably know.
My 3" riser clip ons position the bar grip base about two inches lower than stock bars.
Also a small inch closer.
The feeling of a longer reach comes from the lowering.
Monsters without rearsets position the lower body somewhere close to an upright position.
Clip ons position the upper body in a forward leaning 'race' position.
I'm not convinced about the functionality of such an ergonomic combination.
If you get clip ons, you will have a very different bike.
No rise clip ons - dramatically so.
If you're ready for that - go ahead, but I'd at least think about the Apex adjustable riser clip ons.
The Suburban Machinery bars is a nice middle ground and still provide a nice further sweep back angle.