Rebaffle stock exhaust?

A long time ago when I was young and stupid I took a hole saw to the pipes on my 78 KZ1000 and removed the baffles. Now that I am old, stupid, and have less hearing I am really regretting that move. My pipes are in pretty good shape and I would like to keep them if possible. Does anyone make a baffle that can be retro fitted into stock KZ pipes? These are 2 into 4 megaphones.

I have not seen any replacement baffles for the factory system, but it should be possible to adapt some aftermarket baffles from Kerker or V&H without too much difficulty.