Front disc brake conversion hoses

As I have posted before, my cuda has been converted to front disc brakes, and I am rebuilding the front end after finding my K-member was broken.
Well, it's reassembly time and I noticed a difference in brake hoses. one is definitely an A-body hose...it's exactly like the ones i just bought. the other has a shorter tube at the caliper end, and a longer hose. it s 2" longer overall than the new hoses. should I get the longer hoses for more assurance that there won't be any tightness?
Is the other hose possibly a B-body hose?

the parts store didn't have the hose for a b-body, so I couldn't look at it, and i wasn't going to order it til i found out here first.