Is this a good deal for a £1400 used gaming PC?

Finally saved up enough to get back into PC Gaming! Is the following a good preowned deal at £1400?

GPU: GeForce RTX 2070 Super

CPU: i5-9600k

RAM: Corsair Vengeance RGB Pro 16GB (2x8GB) DDR4 3200MHz

Motherboard: MSI MPG Z390 GAMING EDGE AC RGB

SSD: ADATA (500GB)

HDD: Hitachi (23TB)

Cooler: XILENCE XC977 | LiQuRizer LQ240.ARGB

Case: Cooler Master MasterCase H500P Mesh White ATX Tower RGB

Also comes with (seller won't remove...):

Monitor: Samsung 4K U28E590D
Mouse: ROCCAT Kone AIMO
Keyboard: Corsair K70 RGB MK.2
Microphone: Blue Yeti Nano

Thanks in advance!