What size drop without a C notch?

[r8rs4lf]

1972 C10 Highlander w/350/350, PS, PB, factory AC/heat

Ready to purchase a drop for my truck, but I do not want to add a C notch. Also not looking to be in the weeds, just something to take up some of the gap in between the tire and fender.

I have a leaf spring suspension in the rear, no trailing arms and I will not convert over.

I plan on purchasing 2.5 drop spindles for sure.

For now I plan on running 235/75/15 tires.

No towing or hauling. Only a chair and cooler in the bed.

I've been thinking about a 3.5/5 drop.

What size drop will net me the best ride quality without bottoming out and NO C notch?

Please add your experience. A pic of it would be nice.

TIA