I agree with @tvad the M3 would be a good match and your P3 Silver is a great amp already. A Meishu Tonemeister may sound better but maybe not. I would definitely suggest posting your question here:
https://forums.stevehoffman.tv/threads/strictly-for-fans-of-audio-note-uk.422880/
Lots of AN users and some dealers post there as well as Peter Q from time to time.
https://forums.stevehoffman.tv/threads/strictly-for-fans-of-audio-note-uk.422880/
Lots of AN users and some dealers post there as well as Peter Q from time to time.