Actually the system does look to make sure you can cover I believe 3 hours in available funds (without checking the code). So yes, you would need to fly more to make more v$, or choose an aircraft that is "free" such as training aircraft.
If you go to this link and choose "view training aircraft only" from the pulldown box, the system shows which aircraft are "free" rental, and where they are currently located. Keep in mind you must depart from where the aircraft are located.
I repaid you Ashley W. thanks for the jesture, but by the time I finish my Sch.Div. flights planed, I will have plenty. I fly almost everyday, so that is not a problem. Thank you for your kindness and hope to fly with you again!