That ATX board would be great. The mATX B650M PG is also better than the previous one, it is good enough. If you can find the B650M-HDV/M.2 in stock that is even better if you don’t need 3 m.2 slots.
That monitor was indeed a lucky deal. It looks to be a good combination for this setup.
The sum of those percentages is 87.5%. So what’s the rest, maybe import from France or Norway?