I second the pinhole finder method
I just use a bit of 30mmPVC pipe with masking tape at the front and a pinhole in the middle.
On the back, i taped some std white paper.
Fit to scope and line up sun once the hard way.
When lined up, you can see the projected white dot easily on the paper, and just use a pencil or fine texta to draw a crosshair at that location.
Andrew
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