Hello, diagnosing a vehicle without seeing it is very difficult, but from what you have I am inclined to think that the first noise, when you leave first, is due to the brake pads, many times they will love due to dust and water. The brake pills take off from the disc due to its movement.
My advice is that the brake and clean pills are removed well where they are attached to the clamp (skates) and that you catch it preferably with copper fat, much more temperature resistant. Be very careful that it does not fall on the pills.
The second noise in the central part of the engine is that it is very likely that it is an motor support.
And if when changing the shock absorbers, when you tour it makes noise the easiest is that they are poorly mounted, my advice is that you take it to the workshop and tell it, a poorly mounted shock absorber is dangerous, in addition to the irregular wear of the tires.