Any idea what replacement cost might be for a manual transmission? 2002 Elantra. on 2002 Hyundai Elantra

Clutch keeps popping out of first gear when I try to take off. And when it does its really loud. Motor mounts are fine. Pretty sure its the transmission but any other ideas are welcome. Thanks in advance.

Asked by for the 2002 Hyundai Elantra
we just did one. a new unit from the dealer was 1400.

labor is 6 hours.

add about 150 for a clutch.