Fortnite and gtx 750ti

I am building a
CPU - Ryzen 3 1300x
Motherboard - Asus A320M-K
RAM - Corsair 8 Gb Ddr4 @2400 Mhz
Storage - 120 Gb SSD and 1 Tb HDD
PSU - Corsair VS450
Monitor - HP 22w IPS display
Mouse - Logitech G102
Keyboard - Logitech Prodigy G213

Is my built okay?
 


Would it be possible to change the CPU to the 1200, MB to a B350 & get faster memory?
 
Well, I got my Ryzen 1300x at the price of 1200 and i don't plan to overclock so I bought it. Yeah, I should have bought a faster memory but i ran out of budget XD.