Quick background: I’ve had this mower for 10-12 years now? It’s been a homeowner unit since new. Bought it off a friend who had maybe 1/4 of an acre of grass to mow. Since I’ve had it, It’s mowed our lawn which is on one acre, but obviously not 100% of that is grass. I’m getting some bubbling paint unfortunately. Over the last few years, I’ve been doing my best to clean the deck after every mow; especially in the spring when the grass is more moist. After my spring tuneup, I looked at the deck and saw some of the metal starting to flake under it. Ugh! This mower runs mint and only has about 450/470hours on it. Did a little research with AI; make/model, problem with it, pics and tools I had. Here’s the solution it came up with: Hit the underside of the deck with a needle scaler and a flap disk. Then, a rust converter and some paint. From there, fluidflim it regularly. For the top, scuff it up, hit with some paint using an HVLP gun I have better never used. Would be good practice as it’s a mower deck. I wanted to ask here because I know there’s some good experience. I welcome any advice. Some pics for reference.