Smokey,
You can have an exhaust shop bend something up for ya pretty reasonable.
Frank (Soulpatchf) has a pretty cool side true dual dumpout setup on his rig just loud as he#!.....NO MUFFLERS.
When I had the exhaust done on the Beef, the muffler that was on there was pretty filled up with crud and was pretty restrictive according to my muffler guy.
He said that it was a gasser muffler and wasn't providing good flow for the diesel and suggested something less restrictive. "glass pack"
Sounded good for awhile, but then swapped it over to Goldie when I got her and put on a Dynomax Pro-Flow and dang, sounds like a tweaked up big block gasser when standing on it.
Something like that would work good for ya cause the Dynomax muffler is just under 2' in length. Of course there are other performance brands like Gibson, and Flowmaster but to each their own in choice.....All are good, but I went with the Dynomax given the better flow rates they are advertising.