Is it possible to create proto-personas just with quantitative research?

I have been asked by one of my client that use our current surveys and google analytics and create Proto-Personas for our Website. The website is quite complex.

They don't want to spend any money right now on any workshops. They think their stakeholders time is valuable and I can pull together proto-personas and later on full personas with their research.

Do you think it's feasible to do either of those tasks (creating Proto-personas and personas)?

**Note:**They have never done any user interviews.