"Reasonable" is a relative term. How about just find out what they would charge and go from there as to whether or not the price can be reduced based on "group buy"? It also may help if you specify what they're converting to LED (gauge cluster, ac stuff, ignition ring, odometer, etc...?). Finally, I would assume most people (myself anyway) would want to see pictures of their work, rather than just diving in, unless it's a reputable shop that everyone knows about - even then, people may still want examples. Just a suggestion, or 3.