Re: Voyaging on $500 per month
The Pardee's have a chapter on this in their book. Their formula is to figure you will spend about the same on the water as off once adjusted for the obvious things that are going to change like a car and business cloths etc.
Their main lesson was that people that spend a lot on land will spend a lot cruising and those who spend a little on land will spend a little cruising.
IE people don't change.
The lesson from the Icarus story is not about human failing.
It is a lesson about the limitations of wax as an adhesive.
If you have an engineering problem solve it.