47-55 newbie looking for help!! Please

[Old School Kid]

Hey'all. I been hanging around the 60-66 side of the forum for the past year or so. I have a 1965 truck that I have been playing with and now its time to add another one to the fleet.

Had a few questions and was wondering if I could get some help. I found this truck and the owner said that it was for sale and hoping you all could help me to come up with fair value and a guess of the exact year. I'm thinking 50.
The owners employee said that they drive it once a month, brakes work and it runs "like a top" New clutch in the last few years... The battery was dead and they are charging it for a test ride in the next few days...

Looking for a little help on the value? Year? and any hint of what to look for. ( all the panels ,rockers, cab corners look to be in good shape) Is it a 3100?

Looking for something to slowly fix and drive and enjoy.... Just love the body style.

Looking for honest feedback, he threw out a price, but wanted to see what you all thought.... Thanks again. (I'll let you know what he thought was fair in a little bit) I really like it so I am willing to pay a little bit but don't want to be taken advantage of....