Best Audiophile desktop for under $2500?

My DELL Precision T7610 is crapping out on me.  I was very happy with it and the synergy with my Modwright OPPO205 and sysytem was great. It has trouble playing WASAPI 768khz on the latest JRiver and ROON. Any suggestions on a store or used bought desktop that is Audiophile worthy? I work everyday and dont have time to build one. Thanks in advance!