Maritan:
Yes there was some irrational posts which is confounding to me, as well as some bad information given. You sir, have the right attitude. Hopefully the seller will do right by you, but factor this into the equation, how spent were the tubes that were broken in shipment? My point is that you should ask to split the cost of the new tubes and maybe a little for your time. This would make you whole and you now have a wonderful amp with new tubes.
Btw, if you think it sounds good now, just wait a hundred hours of use as tubes need to burn-in before they sound their best. That said, you need to check and rebias as needed after the 1st ten hours and then about each 25 hours until you hit the 100 hour or so point. After this they should have fully formed and you will only need to check the bias every 100 hours or so.
A bit of maintenance goes a long way!
Jim