Please do livestream!

Agree with the previous posts, dont change! Been reading and enjoying the microwaves101 content for 5 years now, and I love the relaxed format and hands-on approach to the sometimes quite difficult world of microwaves.

If you are up to do it yourself with some guidance I have seen Dunsmore himself answer repair-related questions over at the EEVblog forum.

Surtec650 for RX-purpose waveguide works just fine. Scratch resistance is not on par with proper silver plating though.

Maybe some shop using cubic boron nitride grinding wheels could do it