I got an opportunity, very short window today, to buy a Taurus M669, 4" SS wood grips and some sort of gold madellion in the grip. I know next to nothing about it. Hoping my good friend here on INGO could steer me in the right direction. The guy wants $150 for it. Is it a good firearm and is it a good buy? The model number lookup indicates a manufacture date of 1988. Thanks in advance for the help!