What? A battleship for the Hogosha makes absolutely no sense, inRP as a small organisation without any real infrastructure they would never be able to build, maintain, crew and run these things and frankly ooRP it's just completely stupid. The ID does not need battleships.
It's especially stupid when you consider GMG is fighting four IDs that have full shiplines and is expected to do so with its biggest ship being a bomber, while constantly being piled on by swarms of hostile IDed cap ships. It's about time the devs woke up and balanced the struggling Sigma systems with an actual proper shipline for the GMG ID, starting with a heavy battleship.
Your model looks good but it should be for the Gas Miners Guild. Please reconsider.