Ok! Two weeks later, admittedly, but finally I got the time to respond here after a fair bit of work and such going on irl. Whew. But yes! I'd like to formally join the RP if possible. :O
While I do want to run with the same core concept, someone who became immortal a super long time ago and the core/vessel being placed in a homunculus body eventually and is a magic researcher and so forth, I also want to rework some of the aspects of it and a couple of things as brought up by
@ERode too (the core/vessel gets broughht to Aethera for selling by merchants coming from the East, perhaps, as just one example). To try to smooth it out better and such, be more cohesive, etc. Also taking stuff mentioned into account like having the elf lady adopt him instead of having her own kids or such, etc, to help make sense how he got to become a noble and so forth. Maybe have him have adopted a set of elf twins or something, have some freaky wendigo-looking knight in his service, etc, as other flavor to add to him and such too potentially.
If you're still interested in my concept,
@Estylwen, I'd also still be happy to talk more about it and the ideas you had for it tying the character into things over DMs if you'd like!