1976 23' SF resale value?

[CFish]

An old friend passed away last year after a long bout with cancer and his wife must put his boat up for sale. It's a '76 23' CC Super Fisherman model with a Mercruiser I/O that was replaced about 5 years ago, but only used for a season or two. The boat had been restored, hull and interior painted (red/white). It does not have a T Top, but includes a decent compliment of electronics and is on a serviceable trailer. The Outdrive is missing as the boat had been winterized and covered when he became ill and the outdrive was at a shop somewhere and we can not locate it.

Does anyone have even a ball park value for the boat? I'm an old Mako nut and SeaCrafts are a bit out of my area of expertise. Any help would be greatly appreciated by me and the widow.