No one person should have the control of the books in a club like that. I was the treasurer for a large 200+ member sports car club for two years. We had a member elected panel of officers, president, vice president, secretary, treasurer, comp director, and assistant comp director. The pres, vice pres, and treasurer all had signature access to the account. The treasurer had to submit a written report at the monthly business meeting. We had monthly events that had more than $2000 in cash flow and more than $30k in the bank. Never had any real issues although some of the treasurers were better than others at keeping good records and reports. You always wanted to follow a good treasurer if you took the job so you did not have to clean up the books from the get go.
It is not hard to do if folks act like adults once in a while.