Couldn't you also alchemize a new body then get a heart player to put your soul in as well? For the modification thing?

You know things don’t always work that way right? Assuming you even have a Heart Player like that in your Session, they’d also have to be powerful enough/God Tier themselves for that to work, and even then, alchemizing a body doesn’t seem the easiest thing. Like maybe it’d work? But remember this is SBURB where you’re on a countdown towards your utter and complete perma annihilation. Serendipitous things happen often in SBURB, but they’re often unplanned.