For future reference, you can find the P2P_PORT in the coin's source code in the protocol.h file, it's the 2nd value after GetDefaultPort.
You can find RPC_PORT in the source code in the bitcoinrpc.cpp file, look for GetArg (-rpcport, xxxx), where xxxx is the port.
I'm talking about the values you would specify in the bnetworks.py file.
Just to confirm what I *think* I know....
These values can be specified in the *.conf file as well can't they? (To match bnetwrks.py)
That is my understanding, yes. The above just lets you find the defaults if the coin dev doesn't accurately document the default ports, which does happen.