Micro Budget Cruising - Hidden Costs

[Looper]

I have read several interesting descriptions of micro-budget long-distance cruising and circumnavigation.
Many accounts describe getting by on 1000 USD per month and even less in some cases. Many of these accounts include detailed cost breakdowns illustrating how such a small budget can work.
However none of these accounts seems to mention the administrative costs i.e. Customs, Immigration, Clearance, Cruising Permits, Port Fees for entering, staying in and leaving a string of countries on a circum-navigation. I have looked at some examples of fees and costs for passing through a few countries and territories in the south pacific and south east asia (I am in Australia) and they seem to be quite significant, maybe between 100-250 USD for a 35 footer with 2 people aboard for 28 days per country. Most of these countries will not let tourists stay for more than 21 or 28 days so this will be a regular cost.
These costs probably sound insignificant to people used to travelling on a more comfortable budget but I am interested to know if any of our experienced micro-budget cruisers would agree that these administrative costs are significant and need to be planned for specifically?
Or am I not seeing the big picture?

[WHOOSH]

Looper, I think you are ID''ing a reality out on the cruising trail; fortunately, clearance fees are not endemic worldwide. You will find fees in the Caribbean to be small or absent altogether. As you enter the Med and continue west and perhaps up to N Europe, you will find fees rare...altho'' a few countries like Croatia have fee structures that motivate folks on slim cruising budgets to give them a miss. The Atlantic Is. fees are very small. OTOH the major canals can be very expensive for a skinny budget: Panama, Suez, and the Corrinth all leap to mind.

I''d suggest you plot out expenses by region, and then modify your planned expenditures accordingly so that you average these costs over the full span of your route, in which case a monthly budget won''t be hit quite so hard.

Jack