I agree with Trike Lady, my suggestion would be to seek out a reputable indy shop. Just keep in mind that although swapping handlebars seems to be a simple thing it is more involved than it looks, especially if thereis internal wiring in the bars. Handlebar swaps are one of the most frequent requests we have in my shop, and when ever I get a request to do one , the first thing I do is hit the customer with a rough quote of
$5-600.00 . Now quite often I am able to better this price, but I feel it neccesary to first get the customer into the correct frame of mind before investing a lot of time only to have them change thier mind. It is not as simple as just unbolting the bars and swapping over the hand controls. In any case if you get a proffesionally done handle bar swap done for under $500.00 you got a good deal.