I did a similar thing
Had a 2024 Lariat purchased June of 2024 sold it to a friend
Purchased a 2025 Ranger Raptor September of 2025
Never looked back I smile every time I drive it.
And my wife likes it better than the Lariat
I also used holes already in the bed
I did not like running the tubes down because a could just see loading something in the bed that
would mess up the tubing.
Having 2 50% Karga shelves in my Raptor
How about hanging the rifle off the front of the shelf down at the floor
or attach a locking clip attached to the legs of the Karga shelf
Would not be visible that low in the back seat.
I used coupon code TalonSei and got $45.80 off
Yes, pricey but beats storage space with seat down
They are well made. I rarely have more than one passenger so they work for me