A full body split is not something that I would recommend for an experienced trainee. You could go with an upper/lower split although they can be pretty demanding. You may want to look at a 3-day or 4-day split that can have two upper days and two lower days, but a bit more variation to allow for recovery. I can write something custom for you if you would like.
How is your diet? That is going to be one of the biggest factors in achieving your goals.