actual worth of a mainly sports car/F1 cillection

Just wondering if I could get some input on the actual fair price for the collection below.

They have been opened, assembled once, boxes carefully stored, instructions and unused sticker placed away safely, basically everything that came with the kit is there minus a few plastic bags

The Brickfolio states $2896AUS

I was thinking of advertising for $2000/2200AUS

Am I dreaming?

Racer Ferrari F1 1:8 8674

Technic Williams F1 Team 1:8 846

Technic Silver Racer 1:8 8458

Racer Ferrari F1 1:10 8386

Racer Ferrari F1 1:9 8157

Technic Supercar 8070

Technic (F1) 42000

Racers Polizia Lamborghini 8214

Racers Lamborghini coupe/spyder 8169

Racers Ferrari FXX 8156

Racers Ferrari Enzo 8652

Racers Ferrari F430 (red and yellow building options) 8144

Model Team Shell Ferrari F1 

Technic fighter jet 9394

Technic Tow truck 9395

Mindstorm Droid Development kit (R2D2) 9748

Architecture Empire state building 21002

Speed Champions LaFerrari 75899

Speed Champions Porsche 918 Spyder 75910

Speed Champions McLaren P1 75909

Speed Champion 458 Italia GT2

Speed Champion McLaren pit stop.

6 x Shell promo kits (truck, f1,fxx etc.

2kg of random spare box of various sides etc 

2x motor and battery box

1 x Lights

2 road pieces