Agreed to what many are saying, if Aric's list is 4 to 6 months out.....it's a drop in the bucket in the grand scheme of things for 20 years of bliss. That said, I'm an Aric Audio fanboy.....having the Motherlode XL at $6,375, which is the best preamp I've ever heard.....and his Transcend EL34 "Push Pull" amp. My next purchase will be from Aric as well, he will happily add any customization if it's feasible
Second recommendation would be the Don Sachs/Lynn Olson Raven preamp sold by Spatial Audio for $6,550
Third would be the Backert Labs Rhumba Extreme 1.4 (not the standard Rhumba) which is $8,500
Fourth would be the Supratek 6SN7 Cabernet $4,000 or the Supratek Cabernt DHT at $4,500. I've heard both as friends own them, and they are wonderful. Also they are Australian made

