Someone experience in DIY for quality green screen setup, please have a look:

Green Screen setup sketch:
http://prntscr.com/85abym

This is my room length. I have done my own backdrop:
Room:
http://prntscr.com/85acoj
http://prntscr.com/85ad4o

Below images are the equipments that I have now:
Equipments:
http://prntscr.com/85adm6
http://prntscr.com/85adx9
http://prntscr.com/85ae4y
http://prntscr.com/85aebu
http://prntscr.com/85aej9

Nature of the work: I am going to do video shooting of a talking host until the waist.

I have 4 70w lights now. 2 'f & v double lamp socket', 2 stands, 1 diffuser (umbrella)
I am willing to buy more lights, what lights do I need

<b>Arun</b>