Planet 2000 upgrade question...

I currently have a Rega Planet 2000 and it sounds very nice. I use it with a Plinius 8200 MkII and a pair of Magnepan 1.6s. I am considering upgrading from the Planet to a Jupiter.

Would a DAC make more sense? I was considering adding the Bel Canto DAC2 to my Planet. Has anyone done this or something similiar with positive results?

Are there other solutions that would work better? I don't want to spend more than $1500.

Thanks in advance ... Jim