IMO, forget the HGH. If your knees are that bad at your age already then I doubt your going to see too much from the GH. IGF might be a better way to go and is less expensive. If money is not that much of an object then for sure give the GH a go but I tend to think you'll see little from it. Alternatively the Test and Deca is much more likely to provide benefit and you can run at low dose given your requirements and see improvements in lean mass and libido as well. Maybe look to add in a little EQ too.