Just setup your own p2pool.
For p2pool to work with TRC just use something like
run_p2pool.exe --net terracoin -a <your-terracoin-address> -f 0 --bitcoind-p2p-port 13333 --bitcoind-rpc-port 13332 <your-terracoin.conf-username> <your-terracoin.conf-password>
where
-a is your address and optional, if you don't set it, p2pool will request one from terracoind
-f is the fee you want to grab from others using your pool (they can connect by using an address as username and any password)
run
for more info/options
My experimental TRC-p2pool is still running (just restarted today), although I'm actually not using it myself.
if you like you can connect to
http://lassdas.mooo.com:9322 with username=<your-TRC-address> and anything fo a password.
Never tried PPC, might work with p2pool too.
