Tony my friend do not put words in my mouth that I did not say.
I said "killer set up beating VIRTUALLY etc."

Yes in my opinion the combination I mentioned beats all of the single set ups you mentioned in your list. Obviously this is subject to taste but you know I have always advocated two brands to meet one's requirements. Money being no object one could go for a Tyros4 + PA3X, but bearing in mind the purse strings and the question asked by Steiner I would say that a PSR910 used + brand new PA800 would cost you approx. 2200 euros, which is considerably less even than a brand new basic 61-keys PA3X without speakers, not to mention the Tyros 4.
It goes without saying one would miss some things and some sophistication of the two top models but I think the pros would massively compensate the minuses......
I myself am still very pleased with my PA800 + dated Yamaha PSR900, go figure !!!

regards
John Smies