Was fun to watch, especially psi-bug part, first attempt.

Minor thing - you can buy batteries from Jonas at reduced price, and you can take 1 battery from shelf near Harold, it's always there.
Also it would be more safe to use no armor or at least hopper leather armor for early stealth parts.
Instead of that meek dead body you have found, there could be really, really BAD things - I met them once.
So for no-saves playthrough you would probably want to use boat after all.