How to merge lists including bounce and spam fields

I divided my big list up into multiple lists so that I could send without going over SES limits.

Now my SES limits are high enough and I'd like to merge those lists back together. I know one option is to export the active subscribers from each of those lists and them import them all into a new lists. But it seems to me that if I do that I'll lose the "bounce", "spam", and "unsubscribe" emails. My list is populated by online order data. I want to make sure that if someone has unsubscribed from the list they don't get accidentally re-added when they make a new order.

Anyway, is there some way to merge lists in such a way that the resulting lists includes all emails along with the "bound", "spam", and unsubscribe status for each email?

Thanks, Jesse