Help with Aspire toolpath

How would I create this toolpath but with the back vertical wall angled at say 30 degrees? I have Aspire 11. I created the toolpath in the pic with a fluting toolpath but I can also create it using a moulding toolpath and a two rail sweep. I just can’t figure out how to angle one of the vertical walls. I want the angled wall to follow the dish shape.

You might have to make a 3d Model

I think you’re right. I’m not too familiar with 3d modeling in aspire but I tried a two rail sweep but I didn’t have any luck with angling the vertical wall.

Confirm one side wall at 30 deg and the other at 90?

Yes one side 90 degree the other angled at approximately 30°. The angled side isn’t too critical