Create 3D flying saucer. -- 2

Hi,

I am wanting the following file slightly modified to the dimensions below and have a 'hole' in the center.
https://cults3d.com/en/3d-model/art/flying-saucer-just-like-the-real-ones
- remove 'DOME'
- remove 'cockpit'
- clear out hole in center and set dimensions external size 76mm +/-4 ,Internal hole in middle 31-32mm

For reference of 'hole size', see attached image.

There is some sample files i have come across such as.

Thanks
Tris

I require STL file for printing.
If you can't do in budget don't waste either of our time and 'bid', this ISN'T CREATING A NEW FILE, it is MODIFY existing file.