OP here, I run a computer shop that handles consumer computers. People bring me machines they purchased from electronics store. So i have to mainly contend with

OP here, I run a computer shop that handles consumer computers. People bring me machines they purchased from electronics store. So i have to mainly contend with what is out there. I looked into getting into a partnership with a reseller, but since I dont really have much revenue it always seems like a zero sum game. Sometimes customers want me to purchase laptops for them, and this particular model I had trouble with was one of them. I'll admit I'm not very versed in areas I should be focusing on if I need to purchase OEM products because I am mostly a system builder for gamers. If anyone has any recommendations for getting system licensing and hardware from 3rd parties that's not to much of a upfront expense, I'm all ears.