Window and French door swap

[Jun Wang]

Hello, 

hoping all the contractor on here can give me an insight on this project. 

Got a about 8x8 window and a standard patio door.  

Looking to take out the window and put in French door and install a window where the original door is at. 

So far I have only gotten one contractor out for an estimate of $8000.  Everybody else I call is too busy.  Is this a fair price ? The last picture is what the finish project would look like. 

Thanks everybody