You may be able to do this on your own, as kits are available. There's some videos on YouTube, and one, I think, at Caswell plating supply. The thing you have to watch, is protecting the bore of the barrel, and the working surfaces of any parts.
A comnplete course, on DVD, and the chemicals are available, by AGI:
A revolver especially the Dan Wesson with removable barrels are easy kitchen top projects. Just buy second hand stainless steel pots to do it in since the wife will make you miserable if you use hers.