I have done this diy. You will need a pipe cracker or a saw to cut that pipe, appropriate for cutting location. That can be tricky or easy.

Then you'll need to get new pipe in, again either tricky or easy. Need to slope pipe correctly, glue PVC joints correctly, and use proper seals for the different material joints. Honestly it's pretty basic and materials should cost about 100 plus tools/bits. If you need to cut different holes through bottom plate, its going to be a lot harder and you'll need more tools. If you need to cut out drywall to get access, then you need to patch too (this will be true with a plumber, but they are better at not needing it).

Good luck if you give it a go.