Metahumans for rigging and retopologizing vroid models

Hello, I’m looking to get into the buisiness of making custom vroid models for others and was thinking of using a metahuman model as a base where I would add on top of the rig (working the wrinkle maps as displacement and then adding that to the blendshapes for higher fidelity) and then use the topology to upres the vroid model and add eyelids while combining the textures of both, but can I do this? I render what I do in unreal but could I sell the newfangled model?

Basically, can I sell Custom models using metahuman rig, textures, and topology?