Looking to build a high-end 3D development system +VR

[perlmangle]

Budget (including currency): USD$6000

Country: USA

Games, programs or workloads that it will be used for: 3D graphics dev (OpenGL, WebGL, Three.js etc.), some gaming, esp. Star Wars Squadrons, VR

Other details (existing parts lists, whether any peripherals are needed, what you're upgrading from, when you're going to buy, what resolution and refresh rate you want to play at, etc): 

This is really a new area for me, so it's a from scratch system and I don't really have (recent) experience with Windows gaming PCs. I need something that's going to draw a lot of damn triangles and I'm willing to pay a premium. Proposed build from ibuypower but I'm really just winging it, coming from a Mac/Linux background. I don't know what I don't know. Also, I like blinkenlights so I opted for RGB alot. Any help much appreciated, thank you!