PCSing Help

Hey y’all I’m currently AIT and I graduate in a little over a month. I’m planning on taking RAP leave back home in Florida and I plan on driving to my first duty station. I just want to know what the process is gonna be like when I get there. I read some stuff about getting reimbursed when I get there but I just want to know more about that and how that reimbursement is determined. It’s about a day and a half long drive to get there. Any and all information would help greatly.