Here’s my low poly base - 102 Tris
Unfortunately when I deleted my vertical edge loops I hadn’t left my edges pointing in the axis direction (wasn’t in the spec slight_smile )
I wasn’t quite sure how best to rotate the base without the rotation being part of the transform if done in Object Mode.
If done in Edit Mode it wasn’t easy to see the rotation degree’s. Doing R+Z+45 lend to some weird rotation. Seemed to ignore rotating around just the Z axis (still should be Y axis)
In the end I ended up putting extra edge loops between and then deleting existing ones to get my base oriented in the correct way.