Im sorry if my words were harsh. This was not meant as a lecture but yes, indeed i am a bit frustrated. Not at your questions but rather the mentality behind it.
If you were to look around nowadays, you will find alot of people willingly to spend those kind of money. They have spanking new DSLRs and lenses hanging around their neck like it were a fashion accessory but totally oblivious to its basic functions, shooting blindly. They scratch their head with a puzzled look on their face and mumbling to themselves: "That's not the way I wanted the picture to turn out..."
So what I am just simply telling you that if you don't even know the basics, getting a FF with the best L lenses is really quite pointless.
Let's put it this way;
If you can barely handle a KIA piccanto, would you consider a BMW 5 series?
And just so if you're wondering, my first digital SLR was a 300D. I've been using and am still using it for about 8 years. So yes, it's been 8 years of learning, shooting, and more learning before I even considered buying a 2nd hand 5DMK2 1 year ago.
8 years is a small number. Ask the "old birds" and they are likely to tell you they've been shooting for 8 years in film before there was digital.