A bullet feeder alone is nothing like one with a collator as you still must handle each bullet by hand without one.
The collators I use now for bullets are not terribly difficult to make.
I didn't have a CNC mill back when I made them so I built some simple jigs to get the correct spacing on the wheels.
The wheel is driven by a roll pin in the motor shaft.
The key to correct orentation is the flipper, you want already base down bullets to continue to the drop tube.
If the nose of the bullet is down, you want it to catch in the slot.
So it will be layed flat with the tip towards the outside.
The ride back up the ramp, setting them base down.