The Kwikee quiver that I’m familiar with mounted using rubber clamps around the limbs. Your’s mayhap is a different design ??
The MAJOR problem with the original Kwikee quivers was that the broadheads were exposed and could cut person / place or thing. They came out with a hood of sorts that clipped onto one of the arrow shafts and was an improvement of sorts. When I went full retro on my Pearson Mercury Hunter I went to ‘arrow quiver’ on EBay, my favorite place to spend money I don’t have on stuff I don’t need & found a Ben Pearson spring arm type (hooded) bow quiver.
Ben Pearson made some fine bows. Truely a shame that the company died when he passed away.
If you do go with inserts & screws, lay everything out on the workbench and it will pretty much tell you where the placement should be.