Rookie Questions about setting up a 914 for Autocross, Rookie Questions about setting up a 914 for Autocross Options

[Huck271]

I am looking at picking up a 914 and turning it into a track/autocross car. My questions are high level. If you can assist with any or all any assistance is appreciated.

Body
Fenders - Plan to go wide body to fit larger tires, recommendations/pros/cons ? Metal/fiberglass?
Floor Pans - they don't look bad, but I saw somewhere that you can replace them with deeper ones for sitting lower, i'm tall so every inch counts.
Braces/stiffing - full cage or something in the rear tied into shock towers and something in the front tied to shock towers
roll cage - needed? recommended? custom or weld in off the shelf?

Suspension
Front Hubs - do you upgrade replace these, someone told me swap with 911
to get 5 lug?
Coil Overs at the corners? recommendations?
Sway Bars? Torsion Bars?
Upgrade rack and pinion?

Fuel system
Fuel Tank - Assume being a 50 year old car to redo the fuel system and get a fuel cell with integrated fuel pump and braided lines, any recommendations?

Transmission
Keep or upgrade from a 911 or similar to handle more power? Hoping to get 300+ in the motor

Braking
If I upgrade to 5 lug, then i assume there is a prefered brake upgrade from a 911 for more stopping power

Steering Wheel
Its not in the center of the driver seat, have people moved it to be more centered?

Dash
if I move the steering wheel i assume this gets redone with new gauges etc.

Front lights
i'm thinking or relocating to the bumper and getting a solid frunk with no holes for lights. Cleaner looking

Targa top
I would assume you can't race with this on so do people ditch it altogether?

Motor
swap a 6 or go nuts and do an LS?

Thanks,