What is the best system one can make under $5000


Hi,
I am new to speakers in general and have a couple of decent headphones. What is the best system one can hope to create with a budget of $5000. It is ok to include second-hand components as well. It should allow a turntable and at least one optical input and headphone output.

The listening area is 13ft X 20ft.

Thanks in advance for your advice.

neo_the_one
You really need to let us know what aspects of sound reproduction are most important to you so you get recommendations more relevant to your specific preferences.
@soix, I am looking for a relatively fast speaker and will not be playing the loudspeakers necessarily loud. As for reproduction, I would like a system without much coloration. 

As for tube vs solid state, I would like to lean towards a system with least maintainance.
Didn't somebody at Stereophile call a stack of Schitt and some LS50's one of the best stereos he's heard in the 21st century? 
It seems like exaggeration is the primary tool of a lot of would-be audiophile critics.