Get It Done
I have to agree with most of the people above get it done early and avoid all the worry. After all when you actually calculate the cost of doing it early it's not much. Say your little bugsmasher is in reasonable nick and a 100 hourly cost on average $1500 - $2000. You are talking about $300 lost in a worse case situation as opposed to what ever Mr Murphy has in store for you. Fly safe.
Groggy.