Visa options for Dependant Father

Dear,   
I am chemical engineer working in one of the well known refinery in India. Recently I got job offer from one company of Saudi Arabia. The job belongs to SUPERVISORY category in nature.
In my family there are total four members: Myself, wife, two years old daughter and my dependent father.
Please note that my mother is expired and my father is retired person and dependent on me. I don't have any brother who can take care of my father. My father's health is quite ok. He is of fifty eight years old and healthy person.
Company has offered me Family status. According to Saudi Arabia rules Term Family does not include Father. So I can not bring my father with me under that Family status visa system.
I can not left him alone in india as I am the only person on whom he can depend.
I am looking for alternate ways through which I can bring my father to Saudi Arabia so that he can live with me till the time I live in Saudi Arabia.
I got few information through some resources. One option to bring my father with me is through visitor visa system. Another option is to bring him on dependant visa system.
I have two plan: Plan A & Plan B.
Plan A:
Under visitor visa my father will get visa of 3 month. Before completion of that three month I will apply for extension. My father will get extension of 3 month. After completion of that 3 month extension I will again apply for one more extension of 3 month. Thus My father will get another extension of three month. So total 9 month (3 plus 3 plus 3) my father will live with me at Saudi Arabia. After completion of that 9 month my father has to come back to india.
Once he come to india for a while, I will again apply for another new visit visa for him for three month. Again he will come to Saudi Arabia for three month. Again I will apply for two extension each of three month again he will live for total nine month.
By repeatatively doing so, my father can live with me practically throughout the period I live there.

Now I have few querry / doubt regading my plan A, I request you to resolve it.
1.    Does the visitor visa system related information which I mentioned above is true?
2.    Will my plan which I mentioned above will work practically?
3.    Is there any deficiency / risk / loop holes in my plan?
4.    What are the factors which can ruin / spoil my plan to work?
5.    I heard that visitor visa duration can be 1 month, 2 month, 3 month. It depends on who is giving visa. Is it so?
6.    I heard that visa extension period will be same as your original visa duration. For ex: If visa was given for 1 month duration than extension will be also for 1 month. Is it so?
7.    Can I bring my father repetitively through visitor visa ?
8.    Is there any restriction that I can bring my father maximum xyz time through visitor visa?
9.    Is there any agent/mediator in Saudi who can help me in all this visa issuing/extension procedure.
10.    Is there any rule that according to which my father and my wife can not live together in Saudi.

Plan B:
To bring my father through dependant visa system.
1.    Is there any dependant visa system? If yes what it is all about. How I can bring my father through dependant visa system?
2.    I heard that on insisting my sponsor company, They can do something for my father. Is it so? If yes what I will required to do? How I should approach my company?
3.    Is there any way though which without help from company< I can get dependant visa? If yes how?
4.    What other people do in this matter who has same case like me having dependant father?
5.    Is there any agent kind of thing to help me in this matter? If yes can you give me contact details, mail id etc.


I request to provide me guidance on above points as lot depends on it.

You can reply me on my mail id: [email protected]

Thanks in advance for your help.

Regards