The yellow hue is likely to more more in your head. I'm not saying it doesn't exist... but I'm saying you're focusing on it too much.
As for the date wheel, have a look on the M2M Sales thread, you're looking for a 3235 date wheel, you can also pm
interaktiv
he sources parts and is a top guy/seller. He will also install it for you for 50 eur I believe (don't quote me on that). (Date wheel should be around 150 euro)
Here's some pictures of mine: (Genuine Rolex Silver Dial | Genuine 3235 Date wheel | Genuine Crystal) (The frankens were well worth doing, it's flawless now imo It was about 800 euro for all those) Hopefully you can see there is a slight yellow hue, even on the real dial