One of Murphy’s laws states that if anything can go wrong, it will go wrong. This law is very applicable to complex car modification projects.
If you are about to get a new job and you are going to use your car for commuting, if you are about to start school, go into active military service or move to another country, you will not be able to get too far on your project. For this reason, limit the scope of the project in terms of both money and time.
Many of the parts that you order will fail to arrive on time. The more parts you need, the higher the probability that your car will end up sitting in the garage for a prolonged period of time. If you use your car to commute to work, you may find yourself having to rent a car while you are waiting for your package to arrive.
When you do get your package, you may find out that the parts in it are actually the parts for the US version of your car instead of the Japanese version that you have. A local garage may promise to make the necessary changes to the parts, but then close for two weeks and go on vacation.
Whenever you start a new project, always plan for significant shipping delays, getting wrong parts and parts not fitting. Also, make sure to set aside a budget for various emergencies and unforeseen circumstances such as described in this article.
Make sure you do not have tight deadlines and allow extra time to complete the project. It is also always great to have good friends living nearby who can help you when you need help.
If you do your best to plan for unforeseen circumstances, have financial resources and time, you will be able to sit back and have a laugh at the end of the project.