Possible turntable upgrade....

Hi All,

So it started as a simple, 'buy some new speakers' impulse. Well, that escalated quickly!

Now, I am looking at my turntable as the possible weakest link. Would love your help/advice/input/experience on whether it's time to give up on my old, beloved c.1980's Linn LP12 that I have had since the mid 80s. The deck has Lingo 1 and Cirkus/Valhalla upgrades of note.

Details: LP12 as above, Graham Phantom arm, Clearaudio Concerto cart.

System: Aesthetix Janus (brand new) pre, BAT 250SE (w BAT-PAK) amp. Tara Labs throughout (recent upgrade) including phono cables, Vivid B1 speakers (Tara The 2 cables).

So, it seems that the Graham Phantom may be too much arm for the Linn (been told Linn is better with a lighter arm) so should I upgrade the deck to build the analog around the arm and take it to the level of the Aesthetix/Vivids etc? Basically, is my money better spent on a new deck as opposed to trying to upgrade an old design such as the Linn? Is the Linn now the weakest link in my system? 

If so, recommendations would be greatly appreciated. I know tastes come into it etc but hopefully my choice of Vivids etc give an insight. Especially love to hear from anyone with a Graham Phantom arm. Price range: as low as possible to make the necessary difference, definitely under $10k. Preferably closer to $5k. Of particular interest (but little listening experience) would be Clearaudio and Transrotor. Open to all ideas. All positive input is greatly appreciated.

Thank you all.