Any tips for designing a fitting part for the golf 6 dashboard

Hey there! I want to design a 3d printing part for the dashboard of my golf 6, more precisely the top middle part right

I am somewhat experienced with designing parts in fusion 360 for daily usage, but I don't really know how to design this part.

I did try getting a fit for the front arc and an arc from the middle front to the middle back, then did construct a plane from both arcs and did round the result on both back edges. But I noticed when trying the fit, that the dashboard top is not really symmetric, but has an additional bump to the left.

Do you have any tips/guidance/ideas on how to get a better fit? I did think about scanning it 3d with some lidar device, but I don't have an iPhone and wouldn't know where else to get a device.