Update time, apologies for the lack of them, been a hectic few days...
So after establishing the primary forms (posted above) it was a good starting point for me to work on a clean basemesh, moving away from dynamesh. I used Zremesher on the body, which gave me a bit of a dense wireframe, but the topology is clean and the polys are pretty evenly split which will do well when subdividing and working on surface details. I manually retopologized the head and neck to have more control over loops (making it animation friendly). And finished the base with uvs in UV Layout. Once again, the body has proportional UV ratio so tiling is easy, and the head I dedicated more uv space to as I plan to focus on it more.
After completing the base I began working on some secondary forms and this is what I currently have. Going to do more sculpting, but for now I want to try to get started on some basic clothes for the guy. No MD for me yet, so expect some good old traditional fold and wrinkle sculpting based on reference.
Really hope I have enough time for this, cheers and thanks for looking!