Oh, hahaha, I have long loved the crackfic premise of Peter as a Potsdam giant. You have to fudge the chronology to make it work, but for a crackfic, that's perfectly acceptable!

d) all of the above.

I also like the converse crackfic premise where he's working in the shipyard insisting that he's *not* Peter the not yet Great but definitely Tall, and nobody believes him precisely all the other tall guys in Europe have already been kidnapped. Long fellow outside of Potsdam? Only one person it can be.