Way off on the whole Galleon idea. Lower the amount... drastically. No offense but at the most it should be a 10 billion galleons. Remember that a galleon is worth like $5.00 in 1991 so that 346 billion galleons would be rediculous.
Author's response
Imagine 1000 years of profit going to a single place, that has to be a really impressive amount of money, don't you think?
Now imagine what Harry would have by merging the Potter, Black, Gryffindor, Slytherin and a part of the Dumbledore accounts all into one.
I don't think it would be all that farfetched.
Thanks for the review.