As of today, the prices are higher than what I paid. If you're going to buy, monitor /r/buildapcsales on Reddit and buy your parts when they go on sale. I bought my stuff over a period of a couple weeks and saved substantial money.
Samsung SSD prices fluctuate by 10s of dollars. Other SSD manufacturers such as Intel and WD offer steep discounts at times. The RX 580 GPUs go on significant sales pretty often.
At some point, I need to finish my guide and publish to Github. I largely followed corpnewt's Vanilla Guide for Mojave [1], and followed the Coffee Lake train. It's important to follow each step closely.
Again, I do not recommend a hackintosh, but for me it worked out really well.
1. https://hackintosh.gitbook.io/-r-hackintosh-vanilla-desktop-...