First off, I think you need to make a list of what is restorable. Do you want everything shiny and new - of course you do - nothing looks worse than a lovely repainted engine bay with awful old bits in it, put back in exactly as they were taken out.
Do you want to rebuild and restore things that need a bit of know-how - dizzy etc, or are you replacing everything new? Depends on your budget of course. With my old fastback, everything was new that I could get, because everything is available for Mustangs, and it was a basket case when I got it - with interior parts that just couldn't be reused. You could buy them new and for only a few £ they looked superb.
The Z parts are a fair bit more expensive and there isn't that much available new so you'll end up restoring a fair bit yourself I think - seats, dash, clocks etc. I think you need a Dremel for cleaning up small parts, electrical/circuit tester, small brushes for cleaning the insides of the instruments etc - you'll find something you need to do and then buy the tool to do it mostly. This is why I have drawers full of tiny files, grommets and electrical connectors coming out of my ears ...
I've just bought some Bilt Hamber stuff for cleaning rusty parts and you'll need stuff like that for brackets etc, unless you are getting the whole lot (bolts, nuts etc) replated which I hope you are ...
Loads of youtube on restoring metal parts ... take your time. Rome wasn't built etc ... plan ahead to have something specific to do of an evening/weekend and try to get it done. White board on the garage wall to write lists, and then cross them off when done ...
THIS IS THE ENJOYABLE BIT!