Don't buy used, you already said you know nothing about turntables, buy a new one with cartridge already installed.
A new $299 TT with cart correctly installed will sound better than the best one in the world without the cartridge correctly installed, and the chance in buying a used table set-up right is one in 10.
A new $299 TT with cart correctly installed will sound better than the best one in the world without the cartridge correctly installed, and the chance in buying a used table set-up right is one in 10.