Tail pipe is rusted, want to replace muffler and pipe

On my 71 Duster, the tailpipe has some rust holes near the end that cause a nasty coughing noise.

I'd like to replace that and the muffler, but can't seem to find anywhere that sells what I want. I don't want anything loud or expensive, just something to help keep the original look and get rid of the nasty coughing.

Oreilly's sells stock looking Walker mufflers here.