Nice, my question about Antminer S9 Solo tbtc mining now having separate thread. Actually all works good, since my miner seen many days of mining before now it's not suitable for mining real btc because having many unstable chips, however it's enough for mining tbtc if miner power reduced.
For everyone, just short clarifications:
Basically you need to follow original thread - Solo mine testnet bitcoins with cgminer, Bitcoin Core, and a Compac F https://bitcointalk.org/index.php?topic=5415335.60 but you dont need to setup cgminer, because Antminer has its own, which should be configured via antminer web interface.
Then you need to setup own pool with https://github.com/benjamin-wilson/public-pool