Dear Vmaniqui,
I know you were not asking our opinion, but since others have chimed in to be helpful, I will echo all of it, and add that I know that you are hankering for a hand crank, even just the mechanism - but they -do- come up! I was very fortunate to find an original one a few months ago, crank mechanism only, thanks to a tip here from a fellow list member.
Patience is hard with the Sewing Machine Addiction, but also the thrill is in the hunt, a bit! IIRC you are in California; I doubt that you need to ship two derelict machines from the farthest corner of the country in order to feed this marvelous sewing machine habit!
At the end of the day of course it is your $ and your choice and please forgive me if I have spoken out of turn. However, I just don't want to see you burnt with $150 or more in shipping for two dud machines...
If it is the hand crank itself you are after, how about asking the seller to remove it and mail it to you? Just a thought! That would only be $15 or so in postage.
Good luck, whichever route you take!