I would full length size them, and then sort them into two groups, with the division halfway between the shortest and longest. Treat them as two separate batches, and now your variance is cut down to roughly .004 in each batch. Set your crimp die for the first batch and run them through, then adjust it for the second batch and run them through.
I wouldn't bother trimming cases until they've been fired at least once. If you trim them now, once they've been fired you may end up with this exact situation all over again, since I've had new brass both grow and shrink from firing.
To be perfectly honest, if I was loading them up for plinking ammo, I'd just set my crimping die to give an acceptable crimp on the short cases, and let it crimp the long ones a little extra firm. It's not gonna affect accuracy or case pressure enough for me to care. For my hotter hunting loads, I'd take a batch of fired brass, trim with a Lee case trimmer/length gauge, toss any that are too short in with the "plinking" brass, and then deburr and load up the batch which should all now be the same length.