This is along my thinking too. Though I might go for the 800 f/11 to for birding...
Strodav wrote:
If I had $9500 to spend I'd go with a Canon R5 kit with a 24-105mm f/4 at $5000 then add a 600mm f/11 for birding at $700. That leaves me $3800 for some more glass. Let's see, hmmm, what glass would I get for $3800? Probably a portrait lens, a macro, a nifty fifty and still have some money left over.