Hello,
I am ready to start designing your project.
About building estimation, I will need some information about area, square meters, and ect.
In plannign part, I will prepare two or three 2d alternatives, and you can choose from. In the next step, I will design it as a 3d model and render. So you can find out about final design.
As an important part of this project, as you mentioned, I can do the project based on your timeline. please tell me more about your timeline.
Thanks,
Amir Hassani