Any shop should be able to do it...I lifted mine on my own on three different occasions. There is nothing too special about it, other than the KDSS (which just needs to be opened during install - turn 2 bolts, 3.5 turns). I'm a little confused as to why you are looking for someone who has done this with 'success'...has their been a high failure rate in lifting 200s that I don't know about? Also, when you say lifted, how big do you wanna go? 2" is easy peasy, 6" may be more of an engineering challenge and too costly for no benefit.
If you are interested in suspension setups and looking for a shops advice, I would do the research here first. A shop will give you their interpretation of what the best brand is beat based upon their source of supply and markup.