Converting Offset Single Vanity to Double Vanity - Venting

[Jurassic]

I'm struggling to lay out my drains and vent for a second floor bathroom. The current layout is offset to the left. The new bowls are 30" apart. My new vanity has bowls centered where the green lines are drawn. Basically on top of the studs. What are my best options:
Option 1: Connect a drain to the existing using a wye. I think this is too much of a drop, more than 1 diameter, and would not be correct
Option 2: Stack 2 san tees. I'm still concerned about the drop but many tell me this is ok. And then connect to the current vent higher above the counter.
Option three: Dog Leg the drain over so it's centered between the sink and use a cross san tee or double utility tee. And then go up from there and reconnect to the vent.
The red rectangles represent the inside of the cabinet where I have access. The paper rectangles taped to the wall are just the current cutout in the back of the cabinet.

 

[WorthFlorida]

Option 3. This my home done by a plumber. I have an AAV for venting as was the single bowl vanity.

 

[Sponsor]

 

[Breplum]

In "Worth's" illustration, a double tee is used, which is not to code. The fitting is supposed to be a double fixture tee.

It is required to have a 2" drain to meet code for two lavs. Will 1-1/2" work? Yes, especially with low flow faucets.

 

[WorthFlorida]

In "Worth's" illustration, a double tee is used, which is not to code. The fitting is supposed to be a double fixture tee. It is required to have a 2" drain to meet code for two lavs. Will 1-1/2" work? Yes, especially with low flow faucets.

I noticed it when the plumber was here. I could not find one in stock anywhere
in PVC. But two small sinks at 1.5" I have no drain issues. If it became an issue I can pull the vanity out as I did not replace the dry wall to allow air for the AAV. I many times I fill one sink up and let it drain. Faucets are 1.25 gallon and the smallest sinks Kohler makes. I understand why a double fixture tee is needed.

I had a tiler scheduled and needed a tub installed with a new rough in valve and covert to a double sink.