My Inwin A1 build, budget of $1500AUD for the PC itself and Monitor.
Building inside the Inwin A1 was pretty much a breeze (this was also my first custom PC build), Had no problems with fitting parts, although some of the cables (8pin CPU and USB 3.0) was a bit finicky to plug in before hand. Fantastic build quality from Inwin, but should be expected as the Inwin A1 costs $140AUD.
My Ryzen 5 2600 and 1070 never pass 70°C in playing ultra games in the hot Australian heat (40°C+ !), I would say that this CPU and GPU combo is perfect together.
The case is almost packed to the bring with cables, with 4 fans and very long AIO cables from thermal take, however cable management was still fine once you route them properly.