Hi Raq,
Keep it a dream!
I built a 25" sailboat and then lived aboard a 38' sailboat for 12 years.
At 64' you would be in WAY over your head for a 1 man project.
Not counting the ongoing costs for a boat that size.
I have known many that got into those types of projects that were never finished.
If you keep looking, there will be a better opportunity.