Thank you mod34. THat'S why the firearm is in the hands of respected gunsmith here, in these parts to find out what I might do to rectify this situation.
Yes.... I volunteered to let the original owner have it back if he dumped the reason why he got rid of it in the first place. NOT a good trade, having seen the reason in first hand. NOT a good reason at all, actually, I will see this through and keep it. I love the firearm and will spend what it takes to make it safe.

Thanks to all!!

Dave