I have a Aero S-One handguard on my upper and I would like to find a QD swivel mount that will mount closer to the top portion of the handguard instead of the side.  The M-lok slots are only on the sides and bottom, with smaller slots in the upper and lower quadrants.  With my Advanced Armament HIT sling attached to a mount on the side the rifle wants to tilt away from my body too much.  This is exacerbated by my rear mount pulling from the bottom also, so I will need to deal with that too.
Does anything exist that will mount in those smaller slots on the Aero handguard?

Also, does anything exist for a rear mount that will have the attachment point more towards the the top instead of the bottom?  I have seen a few that are at 90-degrees, but nothing in the upper quadrant.

For the rear mount, this may just be the perfect solution: https://phase5wsi.com/revolving-sling-attachment-solution-revo.html
What do y'all think?

Since the S-One only has 12:00 pic rails at the very front and rear, it limits your options.

But this could work Griffin 45° QD swivel mount