Trucked across Panama?
It would seem to me that there would be enough demand from smaller and mid-sized boats for someone to offer a trucking service across the country. Would seem to me that it would be cost effective since you also could get bottom-painting done and do mast-out maintenance. Also would be faster than waiting for your turn when they don't really care about getting you through.
If anyone likes the idea and goes into business - reserve one free trucking job for my boat when I come there.