I just built a system with around your budget ($1300 US) but I did not need to include a psu in that $1300. I went with a Gigabyte z270x Ultra Gaming, but really you can't go wrong with gigabyte, MSI or Asus as long as you get a model designed for gaming (I assume you're making it for gaming) and also is the correct socket for your cpu. The gigabyte z270x ultra gamer is $150 and for the 7th gen Intel lga 1151 (i5 and i7). Some people also like ASRock.
I hope that helps.
thanks bro! will take that as a consideration