Put them in and find out if they will work
AKA, that clutch fork looks like it is for a A motor, their longer than the B,RB and gen 2 Hemi clutch forks. I would toss the crossmember and replace it with a good one, I may be wrong as it has been over thirty years since I have work on a unmolested B and E body stock 4 speed car that hasn't been molested by someone who didn't know when to let stuff stay stock
The rod that fits between the Z bar and the clutch pedal may not be correct for your car either, maybe it is . Try the parts you got now and go from their
good luck, let us know what you find out and do to get it working well