Can You Estimate the Cost of All this? I'm trying to get my dad to Redo my Room... First I want...

I'm trying to get my dad to Redo my Room...

First I want to build a Closet. It's going to be 3 walls. (2) 2' walls and (1) 2'6 wall.

Second, I need a door for it so I would read out a 2' wide door, 6'8 high.

Third, 3 can of white paint. 3 cans of Color paint. (If there is a difference)

Fourth, a mat. My room is about 12x14

Does anyone know how much this will cost? Like just an estimate?

I am NOT getting a professional to do it. My dad and grandpa can do it.

And I live within NJ if prices vary from state to state.

THANKS
Answers:    OK so here goes:
for the supplies to build the walls will come out to $120 including the compound. Then procure your self a stock hollow doors it will keep cost down and only cost more or less $68. You will only need one gallon of white interior paint and one gallon near color, that will be cheaper at $60 as appose to $16 a piece for the quarts. Then to carpet your room depends on your carpet that might travel about $200. Your total would then be $448 it may be something like $550 at most depending on your carpet. Good luck I hope you get your desire!
I'd say the cost would be about $750- $900.