Brain transfers might be the easiest path to life extension

I don't actually think the program described below is a good idea. Take it more as a plot setting for a hard science fiction world if you want.I want to live forever. Failing that I want to live for longer than 80 years, and in good health till just before I die.Lots of people want the same and, are trying to work out how to make our body stay healthy longer. This is difficult, because all of our various body parts start failing around the same time for different reasons. I hope they succeed, but I wouldn't want to put all my eggs in one basket.So are there other options which avoid this issue?One is uploading. From what little I've heard, I'm not hopeful they'll get there in time.The other is to transfer your brain from a decrepit dying body to a healthy young one, whenever your poor health starts to bother you. This won't cure brain disease, but will at least mean that even if you do get dementia, your bones won't be aching all the time. I also suspect a young body would drastically reduce e.g. alzheimers development by e.g reducing inflammation, improving oxygen and nutrient support, clearing out toxins etc.So a full brain transfer might let us live to 150 in mostly good health, as opposed to our current situation of 80 years, health getting steadily worse throughout.Ok. What would the process of a brain transfer look like?First we'd need to clone unconscious versions of ourselves, and keep them alive and healthy till at least age 11 when the skull will be large enough for our adult brain, but ideally till 18 to avoid... issues.Then we'd have to remove the brain from our current body, and attach it to the new body, keeping it alive the whole time.What new technologies would we have to develop to solve this?Human CloningWhile we haven't cloned humans yet, cloning is a well understood technology. There are specific barriers that make cloning primates more difficult than say sheep, but I would be surprised if these problems wouldn't be solved with a concerted effort