Best affordable phono preamp?

I second the Wright (although I lean to the left).

I can second the ZYX Artisan. Neutral as neutral can be, and very low noisefloor. I don't have long experience with it, and haven't listened to more than a few rivals but I am very happy with it.

My choice would be the Art Audio Vinyl One.

I've heard a few different phono amps but can't say that I've A/B'd any $5K ones. The best phono amp that I've ever heard (and others who have heard more than I concurred) is the John Atwood designed Artemis Labs. There are two versions the PH and PL 1 - the difference being the addition of transformers for LOMC in the PL 1. The PL-1 lists at about $3K so it's well within your budget.

BTW, the Lector CD player is great. I didn't splurge on that because my main love is vinyl but I thought that the sound was superb.

For half that money look at the Ayre. I tried one and it does an outstanding job. So spend 2300 on it and 2700 on vinyl.