As a former pay clerk from the late 80-s and early 90s.
Staff cadets were paid just RES Force members. I did the pay at the final cadet camp at Ipperwash 1993 I think it was.
The Cadet RSM was paid the same as a Cpl IPC 2 or MCpl 0. I cannot remember the exact rate.
Anyways the records were sent to the Cadet Force HQ at CFB Trenton at the end of the summer for final audit and filings for T4s.
CIL Officers were also paid as per rank as a normal officer on call out.
Also all records were sent to the Cadet HQ at Trenton. I believe the money came from DND from the Cadet Budget.
As memory serves and yes it does fail occasionally from when I worked at LFCA HQ RES Pay section in the 90s, they kept the records for 3 years of Class B svc paid out to members of LFCA. Then the the files were sent to Archives for storage. I am sure if you had the dates of service, name, rank, unit you belonged to for the summer , and any other information that would help track the file, you could request it from the Archives. Might want to contact a cadet corp in your area and ask who they report to and call there and ask for more guidance to finding the filke you want to see. Be prepared for a wait as it might take a while to locate. Pay guides were just filed in 3 ring binders and shipped when I was working the RES PAY section sonot sure what happens after we shipped, might be on micro film or sitting in a file box or who knows where.