73 exhaust questions

[fireguyfire]

Hi gents and gals; I have a couple of questions regarding the exhaust on my 73 challenger.
My 73 has a 1970 383 engine I. It, and the engine had a bunch of aftermarket next day parts on it when I got it, including an old set of Hooker headers.
I have gone back to a stock looking engine, which includes stock 1970 big block exhaust manifolds. Now of course, my exhaust system doesn't connect with the manifolds, as the end of the collectors on the long Hookers was much longer than the manifold connection.
My question is, can I get just the pipes to connect the factory manifolds to the old exhaust system, or am I likely going to need to replace the whole thing?

[Bullitt-]

 head pipes .... pricey IMO  http://www.accurateltd.com/E-Body-Headpipes-383-ONE-PAIR_p_176.html 

[Bullitt-]

TTi a little better & bigger .. folks have good things to say about their stuff
http://www.ttiexhaust.com/MoparClassics-Exhaust/ComponentParts.htm

[Chryco Psycho]

TTI takes the manifold casting #s & matches the flange so it is both angled & clocked correctly