Tell Me if I'm Dumb - I May Be

[Batteriesnare]

I've been working from home, will be doing so for the foreseeable future, and have some personal projects that will require me spending a lot more time in front of my computer - I'm thinking I may want to make some upgrades to the machine, and maybe try a little gaming.

Current setup:
Dell XPS 9380 Laptop with dock driving 3x 1440p 27" monitors @ 60hz (monitors go to 75hz, but haven't found a reason to keep them there for web browsing, productivity and work related tasks).
Has an Intel i5 1.6ghz CPU and 8 GB Ram, Internal and external SSD
Cloud 9 Mechanical Ergo Keyboard
Logitech MX Master Mouse

Also have good hard wire internet (350 down, 10 up).

I like the ultrabook and would keep it for when I travel, and would be looking to invest up to $1200 in a new machine. I've been watching a lot of youtube and reading threads on building a PC, and would like some feedback on what I've come up with.

Primary tasks the machine would take on:
Trading software
Remote working tasks (going fine on ultrabook, but since this would be at my desk, would transition)
MS Office Suite
Programming (one of my summer goals is to complete a SQL and Python course)
Light gaming, even if just on one of the monitors.

Current build list - haven't purchased anything:

MSI Tomahawk 450B Max MoBo
Ryzen 5 3600 with factory cooler
RTX 2060 Super GPU
RipJaws V Series RAM
Samsung EVO M.2 SSD - also have an external SSD from a previous machine I'd move over - perhaps a spinning drive for storage at some point
Power supply and case TBD

Is this overkill for my needs? Is there something I could do better? This will be my first PC build from the ground up, but I've upgraded several machines and have worked with electronics for years, so I'm comfortable with the assembly. Thanks for your input!