Question about 94' Remote Key/Programming
 

I was wondering... seeing as though I dont have a remote key for my ES, and I really want keyless entry, is it possible for me to simply buy a used key off of ebay with the correct FCC ID and what not, even though its not cut for my vehicle, and just have the dealer reprogram it to my vehicle? If its possible, is this a costly procedure?

Thanks for the help!