Seeing as there's a potentially large volume of posts coming with this, I thought I'd create a separate thread to detail efforts in sourcing and assembling this monster, and answer any questions about ...

A complete guide to constructing a high-performance DIY 3D printer.

It's also completely fine to run the printer without controller fans, just keep an eye on temperatures. I built my new V2.4, ran it without controller fans while printing the parts to rebuild my V2.1, ...