I my organization I have "pieces/parts - limited licenses to the following tools
I have been asked to "make the best of these"!
Does anyone have experience with these and provide some guidance on how I can align/configure these tools to
provide a synergistic network monitoring tool?
What is the environment you'rte monitoring comprised of? The answer to that guides your product selection.
An all-Cisco network is often better served by Cisco Prime Infrastructure and/or LMS (license included with PI).
SolarWinds NPM is more multi-vendor and a bit easier to setup. There are about a dozen piece of the SolarWinds solution however (NPM, NCM, NTA, VNQM, UDT, etc....) and the basic NPM doesn't do a lot of things you might want.
OpNet is powerful but, in my experience, requires one or more staff full time to leverage its capabilities.
Fluke VPM I don't know but they generally make great products.