My point about BlissMobil was in response to you statements regarding analog vs digital.
You have made it obvious that you want to do everything on the cheap, which is fine, but doing things properly sometimes comes with a cost. That's just a fact.
One thing that I never skimp on is electrical equipment, because doing so can easily result in the potential for catastrophe.
As much as cheap Chinese electrical equipment may seem appealing to some, I tend to avoid it in my own designs.
You used the example of a loose terminal... When it comes to tightening electrical connections, using a torque wrench is recommended, because over tightening can be a bad thing too.
Along a similar line, my concern with cheaper terminals is that their specifications can have a greater tolerance to name brand ones. This can affect the efficiency of the crimp, which when done properly, should produce a cold weld between the terminal and the cable. If the crimp is not sound, this will likely result in a high resistance point, which will likely generate extra heat. In a worst case scenario, that heat could result in a fire.
Building on a budget is a valid goal, but in my opinion, you should be selective on what you are saving money on.