Hey Kyanu,
why not buy the 1700 and overlocking it a bit. The performance difference between the Ryzens is so little but the price is so much higher. So why not overlocking the 1700 to 4ghz. You will need a decent watercooling system but thats no problem.
Alternative:
My build is a dual xeon E5-2690 V1 setup. with a cinebench score of over 2000 and the whole system only costs me about 1200€.
Grüße, Tom