Out of the hundreds of pages I've now read about cans, no one mentions using a high temp anti-seize between the baffles and outer tube (to make disassembly for cleaning easier).

If no one can talk me out of it, though, I will. Something such as this:

any corrosion issues between aluminum and copper?

Don't have any aluminum in my plan (might be an issue for someone else, though).

I just know from my sports car days that stuff that didn't get slick'm could 'heat bond' over time and it became a whole additional project to get those parts off/out.

yeah, it's great for steel parts... so I don't see any issues...

just don't think I'd use it with aluminum cans