Unfortunately I’m in England, but all tips would go down well. How can I tell rot from damage? Also the silver strips on the front are missing ( they cost me £6 at a car boot sale! So a bit of damage was expected) what is the best thing to replace them with?

Hi I have a pair of Redline 6501 speakers, The problem is the covers are a bit tatty. Is there somewhere I can get them recoverd or buy ne covers for them? Thanks Joe