Warren I can't even imagine what you are going through. My shop was broken into a couple of years ago and they got a way with a lot of stuff. This may help a little, if you can spend some time in the wreckage, just try visualize it as it was and as you "look" at it list the tools, don't forget things like saw blades, drill bits, and other little things. Think about past projects and what specialty tools you have bought thinking it will come in handy later. You mentioned a parts stash, that may be tougher, maybe try to remember trips and connect parts to where you went. these are some of the things I did, but I did still have the building which made these things easier.
We have state farm insurance, I don't remember all of the particulars, but they depreciated the tools based on age, but they paid 100% on replacements. As an example my Dewalt circular saw was about 14 years old, they paid 50% on it. I replaced it with a Milwaukee that is more similar to the Dewalt I had than anything Dewalt now offers. I sent State Farm the receipt and they reimbursed me the balance. They did this with everything, my old Lincoln 225 stick welder, I think dad paid like $99 for it back in the 70s, I got a brand new one. This was the only upside to this ordeal, that old welder was worn out.
A lot will depend on your policy, and who it is with. I hope you have as good of luck with your insurance as I did. I hope some of this helps you, good luck on your rebuilds.