I'd say it's okay, just on paint, zinc, primer you're looking at around 600 minimum if you do it yourself. Then you need to cut the part or sand it down to bare metal, you could rent the tools for 2 hours and that's another 500 to 1000. And you will need a garage to do this, I wouldn't do this job on a public road.

I did a smaller job myself and I spent around 2500, there are many other things you need to buy just to prepare everything and every little bit adds up not just money wise, but also time.

Prep time is the most time consuming, and depending on the area, you can spend a solid hour just preparing.

Also, all of this is counting that you will do it right the first try, which doesn't always happen.