Approximately how much would it cost to put all of this under the hood of my car?

I have a 1995 Mercedes Benz Karaoke S420, but I'm getting rid of it to get a 2012 Ford Focus. I'm looking to modify the living hell out of the Focus. What I'm looking to do to it is as followed:

•New, top of the line engine - turbocharged - nitrous equipped
•New transmission
•Custom exhaust tips
•Royal blue paint job
•Purple neon light kit
•Custom headlights
•Classic white wall tires
•All new rims
•Custom carbon side skirts
•New, fully equipped sound system
•Re-done interior

I know damn well all of this won't be cheap, and I plan on doing throughout a period of time.

Approximately how much would all of this cost? I'm thinking it'll be around 70-80k.

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