Guidance Appreciated on True Position

I have two large bores with 6 intersecting slots at different levels in each bore, and each slot is at a different angle. Both bores have threads and undercuts so I can only create a cylinder on a small area. I created the slots as 3D features to get accurate readings at the individual angles.

I need to check the true position for the slot, bore, and datum A. Datum A is a plane parallel to the cylinder, and perpendicular to the slots.

I was told I must create a new origin point and alignment for each true position feature by a veteran inspector at our company. He is very wise when it comes to inspection, but has basic computer skills. I was hoping I could get some guidance on what the best way would be to complete this inspection. All advice is appreciated.

I have two large bores with 6 intersecting slots at different levels in each bore, and each slot is at a different angle. Both bores have threads and undercuts so I can only create a cylinder on a small area. I created the slots as 3D features to get accurate readings at the individual angles.

I need to check the true position for the slot, bore, and datum A. Datum A is a plane parallel to the cylinder, and perpendicular to the slots.

I was told I must create a new origin point and alignment for each true position feature by a veteran inspector at our company. He is very wise when it comes to inspection, but has basic computer skills. I was hoping I could get some guidance on what the best way would be to complete this inspection. All advice is appreciated.