[Bret L]

Looks like you could replace them entirely for under $100,
so it depends
on how much you like refoaming stuff.

I'm sorry, I'm not following you. How could I replace them
for under $100?

And thank you by the way. Two helpful replies when I really
wasn't expecting one.

Well, that site I linked offers a comparable woofer for $60 each. IIRC
refoam kits are usually available for around $40. It's a bit of work
to do it, but it's not too hard of a job if you know basic electronics.

Refoaming has nothing to do with "electronics", it's an all
mechanical activity. If the foam is bad, refoam them.