Making an egg from D/P/Pt

[Rolgordijn]

I'm trying to Pokesav an egg obtained and hatched in Diamond, but traded to Heart Gold. However, I don't know if what I'm doing right now is correct: at "Egg Hatched" (which should be Obtained IIRC) I put DayCareCouple and at "Met In Place" (which would actually be where it was hatched) Stark Mountain (randomly, could be any location from Diamond).

Is this how I'm supposed to do it or should I put Farawayplace/Distant Land/Sinnoh Region instead of "Stark Mountain"?

Thanks in advance.