Driver Side rear coil spring has burst through the frame and into the trunk

It'll be a pain to fix and can cost a lot to find someone who can weld and patch up the hole then install new coil springs.

What I want to know is if it's possible to mod the rear suspension by replacing it with coil over struts and just remove the coil spring entirely? Can this make and model of the car handle that? If it can, can I also get some good brand recommendations? I'm looking for something affordable but also decent.