1965 Chevy C10 Value with Pictures and Invoice

I've posted about this truck before and apologize for the redundancy, however I now have pictures and far more info. To be brief, a family member is wanting an evaluation on this 1965 Chevy C10 they had restored. It is the 1/2 ton long wheel base, 2 WD, Fremont produced. Attached are pictures and the invoice. I don't know a whole bunch about cars (hence the poor pictures), but if anyone can tell me what kind of value the restoration puts it at, I would really appreciate it. I'm seeing these listed for $25k-$55k online and I know that the difference is what's been done to it and that's where I need the expert help you guys can provide. Let me know if there are any questions you have. Thanks in advance!

Invoice:
1965 Chevy Invoice

Photos:
1965 Chevy Photos