As an aspie myself, and late-diagnosed also, I would suggest that "soon is good" but "not too soon" -— she should have her eyes open before its "too late" emotionally and you unintentionally cause harm. I don't know you, or her and so its hard to out a figure on it and lots of aspies are not too good at "spotting the moment".
She'lShe'll probably realise youreyou're not a low functioning-functioning spectrum member by now so I wouldn't bother clarifying that. Just be upfront about what minor accommodations are needed and what pushes your buttons. Yours don't sound too unusual or extreme to me. She may have some in her family or friends and know what to do anyway.
You may get a surprise as I did. My date turned out to be one too.
