man 12k ouch. At best this is a car for a teenager now for ~8k.
All the suspension stuff has to stay unless you want the pain of removing it and selling it for pennies.
Clutch isn't adding any value....
Only things you are going to be able to pull off and make back some dollars are the turbo, top mount, exhaust, injectors, short shifter, gauges (not worth anything), BOV.
good luck. my .02.
Now, all the 'stock' parts you don't reinstall sell on here, some of the folks are looking for the stock bits.