[dallas_]

x2 on getting some sidepipe shields to try first.

I really doubt you will find any off the shelf headers to do what you want.

You might try Stainless Headers. They can send you a mock up kit, then fabricate a set to fit exactly.

You may also be able to use a stock exhaust manifold and have your local muffler shop fabricate the u/c exhaust off of that.