I understand your question.
I am 57 years old and did not start this game until I was 48 and have been going strong and hard since making gains.
It is realistic, however, in my opinion I would not make moving "some semi heavy poundages" my first priority if I were you for 2 reasons.
Correct me if the following is no longer true or accurate.
In your hub you state that you are 5"5" tall and weigh 290 lbs.
Diet and fat loss should be your first priority.
Also you have been a member here since 2002.
In that time you could have read this site from cover to cover and most certainly
should have learned at least enough to address your question.