At the end of the day, it is your choice. It is just metal and there are a few people on here that have cars that are selling rust repair sections.
People keep talking about resale value. My LC 4 door was my grandfathers. It doesnt matter to me what the end value is, it only matters what the car means to me. To say that a 4 door is worthless to me is a pretty pointless statement. If people here added up what they spend on their cars, I dont think that many of the vehicles on here would make their creators any money!
If you intend to do the work yourself, your labour to you is free. After watching many youtube videos on sheet metal work, anything is possible with practice.
cheers
Glenn