What is the compatibility of Taurus (male) & Scorpio (female) both born in Chinese year of the Rat?

He (Taurus + moon in Scorpio, Rat, 25 April 1948) & She (Scorpio, Rat, 31 Oct 1984) + large age gap?

She is Chinese and written so many letters expressing her interest.

What is the best response (based on a proper objective analysis, including sun and moon signs)?

She is from a rich family (never married).

He is independent (divorced) and no encumberances.

Both are university graduates to Masters level.

Both do not smoke or drink and seem to have common interests including travel, except for age gap and different cultural backgrounds? (Western versus Chinese).

Is this doomed from the start?

At face value the answer seems obvious, but then we have the successful relationship of Celine Dion and her much older musical director / husband, so it is not always so clear cut. They recently had twins, and are happy. When they started out, she was the one who decided she wanted the relationship. Interesting.

How good is astrology as a predictor of this fairy tale romance, we wonder with some amazement?

And hence pose the question above relating to the two "rats" - Taurus and Scorpio.