I have 2 rust bubbles on the rear glass window frame that I was planning to tackle myself. I am getting cold feet because of the possibility of it being worse than just sand/paint. Any recommendations for small scale body work? The ones I found were 4+ years old and most on yelp are geared towards insurance work. Ideally I’d take the glass out and just want it prepped for paint to keep costs down. I bought supplies to paint myself since it’s a small area.