Water temp sensor and PS question

[spec-v5150]

Okay I FINALLY got my electric fans hooked and the push good. My temp sensor was broken during install. So I have two question actually three questions on this

1)does anyone know what size socket it is?? I know I dont have it because I lost most of my tools and the highest I had was 13mm i think

2)will a KA sensor work?? I honestly dont even know if the gauge will read even if the RB sensor wasnt broken

3)If I completely remove the sensor on the upper radiator hose (i am assuming that is the sensor), can I just stick my probe in there (didnt sound right..LOL) My temp gauge has about 6ft of hose and a probe connected to it and my dumb *** lost the directions. I did some google searching, but didnt quite find my answer

now onto power steering. It is hooked and works, buthas a leak. I thiught it may be the hoses, but it is the pump itself. We took a HICAS pump from the cllip and plugged one whole with some **** that hardens afterawhile. quik tight os some ****. Well my damn pump is leaking now. Is it possible to use a KA OHC pump. Will it bolt on. I dotn wanna buy one if it wont work. I had one and sold it because the RB pump was working or so I thought. NO PS has been okay. BUt I want it back. If the DOHC pump wont work, I may just try to get an non HICAS (possible on Skyline??) pump or get my current HICAS pump modified professionally. Thanks for any help in advance and sorry for the long post. I finally hjave my car in highway driving condition, so I am getting anxious. I dont want my car to overheat. It "shouldnt" I ahve 2 10" fans pushing 1100 cfm each

[PROJECTRB240SX]

WITH THAT PUMP I JUST ATTACHED A PS COOLER IN THAT CIRCUIT. THERE IS ALSO THE REMOVAL OF THE VEIN PROCESS BUT IT COULD QUITE POSSIBLY LEAVE YOU WITHOUT A PUMP.

[SHIFT_Lock]

rb25 pump wil work it's a non hicas i think mckinny has them or can get one.