welll....you could get gen parts for ur po...
wait im not sure if they work for a 42mm PO, i know for sure the UPO can be interchanged with gen parts..
for the UPO gen parts that can be interchanged include (as far as i know) : bezel, dial, hands, he valve, crown (and tube).
to give you an idea, these are the prices for UPO parts : dial 223$, hands (both hr and minute) about 60$, crown/tube (must buy them together) 20$..
i dont know bout the he valve and bezel...
EDIT:
i know you can source a gen CRYSTAL for about 170$...
btw all these are from offrei
as far as i can see...the best option is to get gen crown/tube and double AR..
and if you're that worried about the logo...getting a silix dial (you have to buy the whole dial unfortunately..) and taking the logo from silix and putting it on yours.. other than that....its really good..