Jeff, sell the boat and the '68 and finish the JL8 car the way you originally planned it. Take your time and be as patient as you can and one of these days you'll look back and realize you did the right thing by sticking with your plan for the '69.
Here's another way to look at it. You don't want to be on your death bed someday wishing you'd done the '69 with the crossram. That's kinda' harsh but it helps me put things in perspective when I'm in similar situations.
Or: The boat and the '68 can be easily replaced once the Z is done.
Good luck and post pictures of the Z. Lots of them.
