I haven't taken any photos of the eyelets, but I do have photos of my shoulders.
Here they are mounted "correctly" (following the seam of the vest)
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Here they are mounted "incorrectly" like wings lol (following the contour of the vest sleeves)
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Here is a trimmed photo of my shoulder after correcting it - just happened to have this uploaded
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See where the two green lines intersect? Place a snap or bolt about 1/2" from that corner. Place another snap on the opposite corner. These two snaps/bolts are critical for MY vest. You could attach to the corner where the red/green intersect, but it may leave a more noticeable gap between the fabric and the shoulder - it just depends on your vest.
These two snaps are the only ones you need for the Boba screen-style mounting (someone correct me if I'm wrong), as his appears to rotate freely about this axis point. Forgot where I saw the pictures.
If you want them fixed to the vest (like mine), two more snaps are needed for the top (near the top of the green line). I used two snaps - one at each of the "top corners".
Jango's vest extends beyond the shoulder plate (mine does not, obviously), and this will require a couple more snaps/bolts to hold the vest to the bottom of the shoulders. I would attach these to the corners also.
