I'm pleased for you mate - but your last post raises a question...
Have you paid for it yet..?
If yes - is it a good idea to wait a month to get the bike..? Especially when you are exposed to the tune of 10K with a complete stranger..?
If no - what's to stop him selling it to someone else before the end of the month..?
I'm sure you've probably got this covered in some way not mentioned - but just in case...