Thanks for providing the photos and verification. If both pairs are fully operational, mount whichever is preferred. I could not allow a 7mm length difference to pilot an obsession; however, I believe equipment purchased from others should be thoroughly examined before hard usage. If I were intending to mount a newly-purchased used fork assembly, I'd be compelled to disassemble it, inspect the components, compare their layout to diagrams, resolve differences that arise during that comparison, clean the parts and reassemble them.
Now, whoever likes to do that, please raise your hand. :giggles