EOS7C will not work because it does not allow condensation of the CO2 or CH4.
TMVOC might work depending on what processes you are interested in, but it is designed for relatively shallow applications.
I spoke with my colleague, Matthew Reagan, and he was not aware of any TOUGH code perfectly suited to deep condensate systems. But he suggested there might be TOUGH codes that you could use depending on exactly what you wanted to model. Please contact him directly if you want to discuss this further. He is at firstname.lastname@example.org.