Analog upgrade

Looking at upgrading analog components and seeking advice. Currently have rega planar 6 and rega aria phono stage. Considering clearaudio ovation or dc performance both with tracer tone arm. Also looking at moon 310 or 610 or Boulder 508. Budget is ~12-14k. Is it better to go up to the ovation with less expensive amp or take the dc performance with one of the higher end amps. Also interested in impressions of these amps and advice on cartridges for these tables. Thanks