Your age should not be a consideration -- I have done successful gyne surgery on men in their early 70's.
You are correct, if you lose more weight or bulk up, things will only look worse, not better.
Ultimately, though, it will be your decision. Do not be frightened by folks who talk about potential bad results. In fact, the vast majority of patients of all ages have very good to excellent results and to a man, they all talk about the procedure as "lifechanging."
I understand your wife's concern -- but as the old Indian adage says, "don't criticize someone until you have walked a mile in their moccasins."
If you do decide to pursue surgery, do your homework, don't rush, consult a gyne expert in your area or consider traveling for such expertise.
Good luck which ever way you decide to go.
Dr Jacobs