[Drake] R4B questions

[Dave Maples]

1. Any recommendations on replacing the first IF crystal filter?  Mine
appears to have one dead crystal.  I saw the filters from International
Radio for the R4C and thought that that might be the ticket...

2. I had been pointed to Rustoleum 777 as the replacement paint for the R4B
cover.  Is this correct?  Is there something else I should use instead?

Thanks to all.

Dave WB4FUR