If a hole just get the bondo patch kit that will last a few weeks and only take hours to do!
Lol totally a joke! Not worth the time invested to do shitty patch that will not last! Get it done at a shop or if know someone that can actually weld and willing to cut and possibly cut more on car go for it. Shop wise I dunno if would be worth it. Depending value of the car cash or to yourself. And how much to be repaired correctly. DIY you'll be able to tell unless take it to a pro to blend paint. Which small little rust spot in my mind would look better then a spot a different color.
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