Engine Baffling Supplier

As the 74 Cherokee ages, the engine baffling (0-320 E3D) is starting to
show its age. Various places have been stop drilled over the years and
it is time for replacement.

I really don't want used salvage parts because they are likely in the
same condition as what I have. The intercylinder baffles and hooks
appear to be Lycoming manufactured hardware and ECI makes inexpensive
replacements. Those don't need replacing (readily available, reasonably
priced PMA alternatives - of COURSE you don't need THOSE).

However, the outer shrouding that needs replacing appears to be Piper
designed/supplied. Where can you get this stuff new so that the 2-3
pieces I need won't cost as much as a new engine? 1 piece from the
DesMoines Flight Service database lists for
$885.00!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!

Any sources?
Thanks,
Mike