Welcome to the world of tube rolling, its a hard addiction to over come but hopefully you will find tubes that are quite different and find that 2-3 will keep you satisfied for a few years. For me the rabbit hole with tubes when quite deep, $2000+ deep with my Ember, Lyr2 and BH Crack, granted there are a few “spares” like 3 sets of Telefunken CCa’s, two WE421a’s, 3 5998’s and others.
I agree with what Torq said about spending $100 for a rare tube for the Vali2 since it will probably be a slight difference from the stock tube but you never know, good luck and keep us posted on your impressions.