PC for Professional 3D Work - New Build or upgrade?

Hello, I'm currently on the search for a new build for my 3D work. I work a lot with blender, substance painter and unreal engine. My scenes get quite detailed really quickly, and my macbook cant handle a lot of the things anymore lol. I maily work with very organic and detailed sculpting, lots of subsurface scattering and 4k textures and realism and details in blender. for video/animations I mainly use ue5 for the faster rendering times.

New build or upgrade?

• 3D Work - Blender, Zbrush, Substance Painter, Unreal Engine 5, VR Sculpting (Oculus)

• Purcheasable in Germany/Europe

• Budget max 3500€

• Size/noise constraints? not really

• Color/lighting preferences? nope

• Any other specific needs? nope

I found a pre-built PC with these specs:

CAPTIVA: Intel® Core™ i9-14900KF 3,20 GHz Raptor Lake

• Nvidia® GeForce® RTX™ 5080 16GB GDDR7
• 128GB DDR5 RAM
• SSD 2TB M.2 NVMe + SSD 2TB M.2 NVMe
• Windows 11 Home 64-bit

Do you see it as a good fit? The price for it is 3109€ which I find a bit sus for the specs but its my first time buying one so I also dont really have experience sadly