I've got the Falcon 40 and it is one tough bird. I'm a terrible pilot, but it keeps coming back for more. I have managed to break one blade.
I have never taken things apart as suggested - I'm roughing it. Yes, I know better, but I spend too much time on the CX. In fact when you read Kamov's piece you would be reading mine too. Pretty much line for line I agree. And I even fly it with the CX power packs. and bigger packs are better. The Falcon wants an 8.4 volt 650 mah / 10c pack, but it flies fine with a 7.4 v pack. The Nimh stock pack weighs about 4 pounds - OK, so it weighs 83.7 grams, but it will handle that weight easily. You can also use the Blade CP battery for extra punch.
The Falcon will run well with the Blade CP main motor and the tail motor. In fact, the Cp tail motor is an upgrade from stock.
I have the super skids on mine and they do stabilize the whole works. Heavy, but with a lip pack, you can get back to stock weight. As a beginner the NiMH packs are fine. They charge quickly and they aren't fussy like Lipo packs.

If you go with the Falcon I can send information that you will find useful. I think that it applies to the Walkera also, but no guarantees. IF I was buying a new heli, I'd talk to Michael at US HOBBY SUPPLY right here on this forum. He's on our side of the Mississippi so shipping is quick and cheap(er) than the west coast suppliers. And I have no reason at all not to get the Walkera heli. As always, get what is supported locally. If you have support for the Eflight CP, you'll have the tail boom, both motors and landing gear. If you go with super skids, you just took care of those problems in one kit.

I like the specs you set for the heli of your dreams. Good luck with that. Being able to fly with a DX7 would be great, but unless you replace some of the innards of the FP heli, you're stuck. On the other side of that, the Falcon comes with a sim cord. Two free downloads and you have a sim using the same Tx you fly with.

Hmmm. This is getting long winded. Sorry.
Soloboss