Steering gear box
 

Finally decided to replace the annoying steering gear box to fix the wheel play
I will appreciate inputs in this
3 simple questions

1- which steering box .. is there any which is really worth to spend more $ , if so then why

2- is this a Diy job .

3- should I flush fluid , replace any other part or any recommended extra maintenance while doing this

Thanks in advance

Digging deeper in old posts I found most of the answers .
Still anyone with new inputs are welcome
Thx