Wouldn't really recommend that DRAM-less SSD.
I'll recommend Silicon Power A80, Sabrent Rocket, PNY XLR8 CS3030 instead.
16gb 3600mhz cl16 ram from gskill can be had for cheaper than the kit that you have selected.
Here's what you can get....
Stock cooler does a fine job, but if your budget permits then you can get DRP4.
PCPartPicker Part List
CPU: AMD Ryzen 9 3900X 3.8 GHz 12-Core Processor ($492.89 @ Amazon) CPU Cooler: be quiet! Dark Rock Pro 4 50.5 CFM CPU Cooler ($89.90 @ B&H) Motherboard: Asus TUF GAMING X570-PLUS ATX AM4 Motherboard ($164.99 @ B&H) Memory: G.Skill Ripjaws V 32 GB (2 x 16 GB) DDR4-3600 Memory ($149.99 @ Newegg) Storage: Silicon Power A80 1 TB M.2-2280 NVME Solid State Drive ($124.99 @ Amazon) Total: $1022.76 Prices include shipping, taxes, and discounts when available Generated by PCPartPicker 2020-01-24 01:58 EST-0500
for 1500$ i dont think your going to get that. the cpu alone i believe is like 550$. amotherboard that supports "lots" of Hard drives would be like 250$+ assuming a lot to you means 10 sata plugs, that much ram would be 400$+, m.2 would be 100-150$+, cooler could be 100$ if you get a good one, e.t.c