Explore 3D printing of replacement parts

Are there any technical specification sources that would include the composition of Control Arms (Upper and Lower)?  These are very expensive parts to replace and it may be worthwhile to 3D print the following items using EBAM (Electron Beam Additive Manufacturing) to get solid pieces (not the fused-powder results of the laser-based technologies).  I would need to know the metal formulation so I could meet or beat its quality.  I'd also have to make high-resolution scans.

MJB1340AC

MJB1341AC

MJF1346AA

MJD1420AA

MJD1421AA

Thanks in advance,

Jeff