Any way to get VEX Parts for cheap?

I am a high school student with not that much money at all, I am starting to get into coding (I am using RobotC). The thing is, I need parts in order to see if my code works at my house. At my school they have VEX Parts (I am enrolled in an engineering pathways), so I can use parts there and see if my code works, but I cannot afford the 500$+ kits that they offer, is there a site or any way I could get some VEX parts for a lower price?

submitted by /u/zuccccccc
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