i vote for local w/ 2.25" pipe. you can bring in your own mufflers to some places. Dynomax are supposed to be good.
some places/techs will only custom bend, and it might come out the way the tech thinks it should rather than the way you do. a tech who is unaware that the pipe goes above the crossbrace may run it below.
many places have specs on all the pipes, and can use the specs to bend it like factory rather than complete custom, or even do a combination of custom and factory style bends, giving you a 1, 2, or 3 muffler system for your bird... maybe even a front crossover.
you can call and ask prices and whether they can bend to factory specs or not. (have 'bend cards'). also ask about their mufflers and if you can bring your own. usually you will get a better price over the phone, but it always goes up once you add in hangers and clamps and any extras (like crossover) you want. just remind them the base price they gave you on the phone.
one company i worked for had Ravin mufflers which were very solid in construction, and, at the time, were carrying a lifetime warranty. their regular mufflers were garbage. the Ravin was similar in construction to the Flowmaster, but sounded different. some people didnt like the sound and preferred Flowmasters. i was the opposite.