Jason
I found the following info from a recent auction in Herefordshire
"Morgan restoration projects also proved popular with the very large crowd of mostly pre-war motor car enthusiasts. A 1938 MX 2 Super Sports three-wheeler in restored, though component form was much contested until taken on for £28,285, and an abandoned and poorly stored for 12 years 1958 Plus 4 4-Seater Sports with TR4 engine was rescued for £12,535."So its looks like you might get a fair amount of interest. I've looked behind the sofa and unfortunately I didn't find enough to make you an offer
Good Luck
John