To insert gates into another image 3D

I need to submit a planning application
I need to showcase how my new entrance gate to my garden will look .. with all measurements

The image one with small green gate is my existing gate
The image two is what I want to create

I need you to insert the image two , the gates with the roof
To the image one
With all the measurements that I will give you

If you are qualified , I’m guessing that wouldn’t be a job more than an hour

Kindly respond
À) if you are à 3D designer
B) can do it fast for today

Thanks