If you have a legit line on a Warrior- buy it. They are extremely rare.
Yes, the tubes are pricey. But there is an option you may wish to consider and that is having it modified to use the 24LQ6 tubes instead of the 6LQ6. The 24LQ6 tube is much cheaper- they can be had NOS for $10-12 each if you look around.
If you do pick it up, get in contact with Alan Price in Indiana- he goes by 'fixer' or some variant of that on this board and a few others. He completely rebuilt my 10-tube Phantom and did it at a very fair price considering that I sent him a real basket case.
Check out his website at
www.tubesplus.com (don't be put off by the cheesy music on the website, Alan may not know web design but he does know tube gear!). He doesn't work very quickly and is a man of few words but he will get it done and it will be done properly.