Making a expandable spiral for school project (spiralize option)

[Slayman 0]

Hello!

 

I'm doing my first spiral from Solidworks to Cura in school. I need to use spiralize outer contour option and with support it takes like 1 day to print so it's too much time. Needs to be under 9 hours. You can see my setting there in the first and last picture. Part size: height - 145mm, width - 125mm.

Will it hold up without support or collapse?

I was wondering what less speed does to the model, maybe it will hold better?

I tried an inner solid part to hold it up, but maybe it will stick to the sprint and be hard to get rid of after?