pioneer 750

I know this is a long shot, but does anyone have a muffler from a Pioneer 750 or 1770, 1771, 1750 that they'd be willing to part with? Looks like this: Let me know.

Hey all. Here's the story. Fired up my pioneer 750. Hasn't been run for 30 years. Got lucky and didn't need carb adjustments, just primed and new fuel. Sounds great and loud! Revs smooth and high, no load revs up sounding healthy, then seems to get a second wind and jumps rpm and really smooths...