I traded a 20-year-old Planar3/Exact/Fono for an RP10 and Superline, which was a very good move for me. That said, the old setup was delightful, and delivered value for money, never embarrassed in my 500 system.
The Planar3 was extraordinary, especially with modern motor and belt, and the fresh cartridge.
A Planar2/Bias in a record store restored my interest in vinyl and sold me on the brand.
Find your comfortable price and go forth.
I would add that, in my experience, hot-rodding Regas is more expensive and less rewarding per $ than simply trading up to higher “stock” levels.
My only regret upgrading to the RP10 is that my friendly dealer is enjoying my old 3 at home in his second system, while I am again in the market for a new cheap-and-cheerful player for my second system!