All looks pretty good. If it were me, I'd put a few quid extra into a Gigabyte or ASUS mobo due to poor experience with MSI products in the past. I'm an Intel guy these days, but all the AMD CPU's I've owned in the past have been solid and reliable. Corsair PSU's are bulletproof too provided you don't overload them. Looks like you've pretty much nailed it first time.
I'm curious, what is the read/write speed of the SSD? And which OS are you planning on running?