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Well, Numeria is practically next door. This is feasible.
The Technic League would be very displeased to have an android running off, so I would use that in the backstory. You don't have to use the league as the reason you left though. Maybe you have a natural curiosity that only adventuring will satisfy.
Talk to your GM about any possible NPCs that could fit with your background as well. There may be a few that could elevate your background.

Philip Knowsley |
There's also a TP race which could well fit nicely - Ironborn.
One of the original players in my game played one. His backstory was that
he was the creation of a Drow wizard. (Albeit his PC wasn't a wizard - but
a rogue with wizardly pretensions.)
If your DM allows TP material - I'd check out Ironborn of Questhaven.