Keep it simple here one of mine that needed more solid than normal installation and linkage for carrier landing. the standard dubro nose wheel steering arm can be use on your tailwheel just above the dubro tailwheel bracket and use an external pushrod at that point.

This has many advantages in adjustabilty and utility at the field. Simplicity trumps looks every time when it comes to lost time at the field

If you must have it completely internal linkage the dubro TW brackedt must be mounted to flat plate that is removable with screws and the steering wire is just a little longer with the steering horn mounted just a little higher up. The steering arm is clipped off just enough to fit and the furthest hole out possible is used. When the pushrod is attached to the steering arm that has been clipped then the other end of the pushrod must be mounted to the very closest hole possible to the servo output arm.

John