Just so you know, 1 det = 0.22.. Mind.

High allagan is currently the best weapon in game, thus you need really good group for T9.
Also a luck for your weapon to drop. Now.. Zodiac weapons. They are absolute, with each major update they get an upgrade.
It will destroy high allagan eventually. But, ofc.. by that time there gonna be 3rd coil or grand allagan whatever it's lol.
However, zodiac remain 2nd powerful weapon in game. So you should farm your novus weapon while slowly progressing 2nd coil every week
In fact, if people don't farm novus now, later it's gonna be a nightmare. Good luck!