Summit exhaust kit

Thanks for the help guys.
I am trying to figure out which way to go.I have a set of Hookers,but headers sound like a nightmare to install,plus the shifter linkage will have to be modified.My friend has a set of 340 manifolds I am trying to talk him out of.TTI's would be nice,mucho denaro though.Local muffler guy who has done work for me before gave me a qoute for $375.00 for a single exhust,flow master set-up.Seems like dual is the ticket.
I'm rambling on here,just want to do it once on a medium budget.