Hi Chris... good luck. I did say fat old people - not happy. People can be happy when they are old despite their medical problems, however reduced mobility caused by being overweight will seriously impair your quality of life.
According to http://nhlbisupport.com/bmi/
your body mass index is 32.5. It needs to come down to between 20 and 25. 60 lbs would bring you down to a very healthy BMI of 22.1.
The hardest part will be the psychological bit I think, we are all so used to eating!