This sounds about right to me, although we might exercise the option on Tana rather than let him go on a free. We paid a €330,000 transfer fee for him and we'll want to get some back.
Or, we might even keep him. According to Capology, he's on $270,000 per year. That's more than Haak, O'Toole and Gray (talk about imbalance) and a little less than Mitja. But as a raw number, that slots in okay for an experienced, physical, 600+ minute center back, especially if the Salary Budget is expanded with the calendar realignment.
If we want to clear space for, say, Max Murray or Prince Amponsah to get first-team minutes though, he'll have to go.