Well, taking into account my exp (I have 1500+ sites and am working less than 4-5 hrs/day) - I suggest using genius Ford's invention - conveyor.
I'd explain in detail if I new at least roughly what you do.
For example, with SB - better to run several instances at once (SB license allows to run as many as you want on 1 machine), each doing it's own little part of whole task.
Am I getting it right that you are featured in all 160 videos?