Not a fan Roland Sand's stuff. All flash and noise. And by "noise", I don't mean the good kind. Some of his crew's work is more appealing than others.
His customs are not only ALL deafeningly loud, but not technically road legal for several reasons beyond the obvious matter of always wanting to run open (or nearly so) pipes. By rider accounts, not always the most rideable stuff.
I work on the assumption that an SD-owner (regardless the bike's form) is interested in retaining the bikes better riding qualities - as in unwilling to forgo this for aesthetics alone. If so, RSD may not be the shop for you ...
Upsides with RSD, are that his corner of the shop (
http://www.performancemachine.com/ - not the "retail" place in Los Alamitos) is no stranger to KTM, and they'd probably be willing to do it. Don't be shocked if the price tag is in the six-figures.
This guy is more a Triumph and H-D customizer, his ethic is more down to earth, and very parallel to that rendering:
http://www.mulemotorcycles.net Heavy emphasis on function - and in most cases improvements on function.