Thanks to all of the suggestions - I did it!
Ended up using some high tech lube a mechanic up the road gave me and then heated up the screws a little...and they screwed right off! Dang - it must have just been around the top because it didn't take but a few seconds and they came right out. I appreciate it guys - I'll post a "finally done" photo in the next few days - with the mini egg on it so it will be on topic. :laugh:
Three down and one to go
Done! I've already cleaned and mounted on the boats adjustable pedestal
This is one sharp 1979 Norris Craft!
Thanks again for the help -
LJ or "MSB"