Ready to spend $1100 for upgrade and need inputs

I have AR turntable with Audioquest tonearm PT-15 for 15 years. Now I have $1100 to spend on a turntable plus tonearm; pre-owned is fine with me. (I got a new Denon DL-103 as gift). I only listen to classical music (all types). My other equpipment include: Black Cube (original) phono amp, Aesthetix Calypso pre-amp and Focus Audio FS-888 speakers.

What do you think of the AR + Audioquest combo if you have experienced with it? And how much is the re-sale value; say its in 6/10 condition. (since this is the only turntable system I've ever owned, I am unable to compare to others.)

Many thanks.