Take the room with the view! That's probably the bedroom, right?
Those of us in NY know that it's dark here much of the year... why go down to the basement where it's dark all the time?
As to placement of the sewing machine... I love windows so much that I daydream and get distracted if my machine is facing a window. So I chose to put mine against the wall, on purpose, to keep me on task.
Now, the cutting table, that faces the window! Perhaps it enhances the creative process. Sitting at the machine, that's literally the mechanical part of the job.
As to space... if you're like most of us, your "stuff" will grow to fill all available space, anyway...