So I have a friend that has a gun I'm interested in, it's a Ruger mini 30 and it's around 15 years old(ish) he has a new stock with a pistol grip and also a front mount pistol grip, the gun also has a Simmons scope, 4 30 rd mags, a 4 rd hunting mag and comes with 800 rds of ammo. I'm thinking I can get this for around $600-700 but I'm not sure if it's worth it giving that the gun has some age. I've tried looking them up but can't find one with that style of configuration he has. Are there any gun ppl on here that knows if this is a fair deal or not? Thanks.