OK, I just wanted some advice for the upgrade path.Right now, I´m happy with the Planar 2, is very good!
This would be my advice too!If you have any idea what level to end up, you might consider jumping some steps
Perhaps you can find old stock of the RP6 or RP8, both will comfortably walk over any Planar 2 or 3 paired with any of your suggested cartridge, perhaps ad something from AT-VM95 range
Sounds like you've got the upgrade bug, so might be worth going straight to the P10? Joking aside, the P3 is a very good TT and gives you further upgradability with a connection for a TTPSU that you could add later on. If you do feel the need to scratch the upgrade itch, I'd say go for the P3, then enjoy your music without distraction for a while