My dad has a Marlin 30-30 he was thinking of potentially selling and he asked me to find a value for him. SN is 21xxxxxx. It has a bushnell 4x sharpshooter scope with see-through rings. it also has a gold trigger. Everything on the barrel is Micro-groove barrel MOD 336 Cal. 30-30 Win. Any help is appreciated. Let me know if pictures would help.