Its hard to answer your questions, because the instruments can vary over a dramatic range.
We'll use a GC as a base. The price can range from say $10K (US) for a very basic model to well over $250k. It depends on your application. The base unit is for a straight GC with a TCD (or maybe FID) detector. The high end would be a mass spec system with auto samplers and multiple detectors. This is before you start talking about used systems, rebuilt systems, and some very basic GC-like systems.
The question boils down to "what's your application?". This will determine many of the detectors and system requirements. And this holds true for all the instruments that you mention in your email.