I didn't have the stock shift knob to replace the Boomba knob and as far as the Cobb Accessport, since I was running a much stiffer wastegate actuator, the stock tune would not run correctly so I left the AP on. It wouldn't not look right if they were to test drive the car and it was not in proper running order.
I did manage to sell almost all the suspension components of the car, I had a HUGE for sale thread of all my aftermarket parts.