The very finest solid-state line stages, such as the Rowland Coherence II and the Blowtorch, layer space as well as any tube line stage, are just as musical and beat them on noise. With your budget, you do not need to do a tube preamp (or put another way, if you have a lot of money to throw at a preamp, my experience is that the very best solid-state units are the way to go, a fortiori with respect to phono stages because of the impact of noise where a weak signal is being amplified).