Modify 4WD in Johor Bahru area ?

[funkydog]

Hello Guys, i am from Johor Bahru, driving a Mitsubishi Pajero 4wd, and i'm interested to modify a little, like adding a tow, the type with long cable and reel, so when other car got stuck in the mud, i can use my reel and pull them out.
also modify the air intake hose to the roof of the car, so water wont get in easily.

any good workshops for 4wd around Johor area ? Please introduce me. Fairly new to this.
Thanks.