[0311Chevy8152]

Advice please: I removed the lights and tailgate from the bed preparing to start disassembling the bed. I stopped before I even started when I saw welds between the bed and side panels. Originally I thought they just bolted together. The bed definitely needs work, the floor is dented in several areas, the wheel wells have lots of dents, the side panels on one side has a bunch of bondo you can see at the bottom of the panel, both sides have old fuel doors which I do not want anymore, and there is probably more I am not seeing. So, should I grind welds take apart bed (if that is even possible), or buy a bed (how much will that cost)? Thank you in advance for taking the time to reply. I greatly appreciate it.