Hi there Bon Bon
i was 51 when diagnosed, strong family history. My recommended treatment was single mastectomy but elected for a double with immediate reconstruction - you are not vain to want reconstruction....
your options and choices are very individual and I think you are wise to explore all options. Ask lots of questions and work out what is best for you. If you are considering reconstruction the closed group @Cosette_BCNA recommended is a good option to get specific real experiences from other ladies.
Remember that it is your body and your choice and reconstruction is part of your treatment in the process if that is what you choose.
feel free to ask lots of questions
Hugs
Chris