So a quick clarification: I don't bring up the Norwich because I'm interested in checking it for castaway artifacts, but simply because...well, if AE/FN knew they could easily reach the ship, and if crabs were such a problem, then I find it somewhat problematic that they would choose to leave the N side of the island to go to the Seven Site (which is what the TIGHAR theory is).
In this and my other recent comments, I don't question the validity of the Seven Site, nor do I mean to challenge the prevailing theory that the Electra landed on the N. Ric speaks persuasively about that, and I think that with the proper equipment, the engines or the plane core will be found.
My point is simply that, in the event that parts of the Electra are not found in the N, I don't think that means the end of TIGHAR's compelling case of AE on Niku. Instead, I think we could probably build a "runner-up" hypothesis that the Electra landed somewhere offshore from the Seven Site, and that AE/FN simply stayed in the nearest hospitable location to their crash. The take-away being that if the Electra is not found on the N, then maybe a back-up search plan would look at the seaward side of EN-ET.
And I may register yet! I did plunk down the $100 for the grid maps, and would encourage everyone to do the same.
Thanks for all of your helpful links! I look forward to surfing them...