Hey Donovan,
I've been contemplating the same thing. I have a Seagull S6 and was talking to my local guitar guy about adding pickups to it. My "dream guitar" is a Gibson J-45 custom which uses L.R. Baggs Element pickups and so he told me I could install those and it would suffice as a substitute for now. He claimed that I could get a similar sound as a J-45 when plugged in since the pickups significantly contribute to the tone. I'm a little skeptical on that but I suppose that could be the case. I'm really into Texas Red Dirt music and the J-45 is THE acoustic that a lot of those guys play. But the customs run 3K and up *yikes*. Admittedly, I know very little about pickups but I thought it was interesting that you were also thinking about adding them to your Seagull.