Welcome and sorry about your husband.
As for the figure, as far as I know, they only made 9" figures for the line as you can see here
http://shout.webring.com/people/rl/loganmego/Megosurface.html
Then there was these
http://www.theworldoflogansrun.com/toys.htm
theres 2 prototypes for the REM and Francis characters also. I'll dig through some guides I have later and check for sure if theres any like you posted. But as far as I know, the one you have is a custom, from what I have no clue. Value wise, not much at all.