Agree with others, do you know what equipment the school provides? There may not be much he needs to provide. Way different sport but when I ran track in college everything was provided to us. We were a D2 school who had a contact with Nike. Everything from practice clothes, to duffle bags, to unis to multiple pair of shoes were provided. Heck I think I could even get a jock if I wanted it.
I would lean towards things he needs for school instead of baseball. Or how about fortnite credits? Don't discount the amount of time a college kid will spend on video games.