I have a warehouse that I would like to setup with a system. What are the first steps in creating a system to this, without adding a third night job, lol within reasonable cost.

What speakers or loudspeakers will carry great sound for 8000 sq ft? how many will be necessary?
What models?

Is a high end receiver recommended? Or is a high end amp and tuner the solution?
What models? amp,tuner,reciever

What role do pre-amps play? crossovers? EQs?

By now you are aware I am in serious need of hi-fi knowledge. My intentions are to blow that warehouse away, maybe some jerry garcia, warren haynes (gov't mule) etc.

I appreciate all input and will post progess on components purchased.

Tampa, Florida