300 tph is a small flow rate for such a design. The following comments do not take into account such a slow rate.

If you where to use a striker plate, the shear plane height, assuming you have one, inclination angle, and distance between exit plane and discharge pulley must contain the rock from spilling off the end when dumping from truck and the resulting rock dynamics.

Inclining the apron bed is practiced when reclaiming from a glory hole to feed a primary gyratory or jaw crusher, with tonnage of significance. The angle is typically about 20-22 degrees. At this incline, the rock bed somewhat self regulates the exit depth into the crusher.

An incline bed is a slow moving machine as is your rate. It also requires additional maintenance that is not observed with a horizontal bed.

Many points need to be clarified to be precise.

ThyssenKrupp, ManTakraf and related companies do have incline apron feeder designs and they might lend you a hand. ■