That sounds pretty expensive man! i would do it on my own, remember you got great people here that can help you during the process.
I had to change my pipes pnce too, and i had a lot of rust, in fact i broke all the bolts that holds the pipes to the manifold and i was a pain in the rear to fix.
Here is a few advice that i learn from doing this:
- your pipe should be warm before you remove the nuts and bolts.
- if you break them, use a "channel lock" tools to remove them out of the manifold (also use a torch to warm it up)
- use kind find the bolts and nuts a any auto store.
My two cents
2005 Vulcan 750