Yes - a suspension-corrected fork is what you need when you have a bike that was originally designed with a suspension fork, but you wish to replace it with a rigid fork. And don't want the head tube/steering angle to change. Suspension-corrected forks are taller than regular rigid forks, to match the longer axle-to-crown distance of a suspension fork. Since suspension forks normally have 80-100mm of travel they have to be taller by design. Most of the DJ forks have "correction" built into them, so when swapping back and forth between suspension and rigid, the steering/angles remain consistent.

However since the T900 was designed with a standard rigid fork, you ideally do NOT want to purchase a suspension-corrected fork. Or worst case, one with very minimal correction. The suspension fork currently on your bike is likely affecting the handling due to the longer/slacker head tube angle. When you go back to the proper length fork, you will find you have more nimble, less "floppy" steering due to having the proper head tube angle restored.

Well I think you have already found your solution. And for that price you can't go wrong. I could not recommend anything better than this aside from an original T900 fork in the same paint scheme. And it likely would cost much more.