Absolutely, quite a few folks would like to assist you in buying.
Perhaps you would be so kind as to specify what you want to purchase and if no money has to be transferred to a Nigerian checking account, you may get some help.
On the other hand, if you are smart enough to have earned funds to purchase a yacht, you would also know how go about finding the expertise to assist you in the process.
That being said, if you indeed have to search blind on the internet to find the yacht or the help to do the deal and if nothing pans out in your favor, I suggest you obtain the assistance of a qualified Yacht Broker:
He or She will certainly lead you in the right direction.