@Interface, i will start makeing your request now, and no i cant make you a giratina holding the platinum orb for diamond because the platinum orb is (in fact like it's name) for pokemon platinum only, so anything new in platinum wont work on D/P (new forms, new items, etc.)
@XAztekar, you will need to be more specific about the arceus, and if you whant to make requests you can.
EDIT: here you go interface, just so you know the max EVs are 255, i cannot give it "Life saved at level" because pokesav cannot do that (maybe a ROM hacking tool but im not sure), anyway this code will place the requested pokemon at box 18 slots 4-5, enjoy:
tested and worked on both diamond and pearl, any problems/changes you whant me to fix/do tell me right here or pm me which way you prefer.