He has good numbers for a freshman. 5'10 165 and a 7.7 just makes him a below average runner. Trimming a full second off that is going to be tough if not impossible. Just has to do with fast switch muscle fibers. I would scrap the OF unless there are some dramatic improvements over the next year. Other than that, he seems to be in a good position. If anything is going to happen it will most likely be next summer. Don't worry about the camps and the showcases too much right now. There are only about 20-30 schools looking for 2022s right now. If they haven't shown interest in him yet, it's not happening right now.
You said he plays for 5 Star. Does he play for their top team? If he does then he needs to sit down with the coach and have a serious conversation about how he should be moving forward. If not, get him on the top team because he has the measurables for that team.
If the coach isn't much of a help start sending out emails with the subject line - Joe Smith 2022 RHP/IF. 5'11 85mph Team 5 Star National -. Search the board and you will find plenty on what to put in the email. Save your money until you need it, no need to spend recklessly when it isn't going to happen.