Find the age, just about any A-5 90% goes for 500 to 1K.
Blue book value of guns has them really low for some reason.
80% have cracked stock or forearm. If its mint, its worth 1K IMO. Well worn, below 500.
I used to deal in them all the time. I don't know why, but they don't fetch as much as they used too. They were hot in 2000. I had 5-8 lined up.