This may well be the most difficult step. You now know what you want, what is available, what fits with your mission and approximately what it will cost. If not, please review the prior steps for completeness. Quite possibly the plane for you will "fly" off the spreadsheet and be readily apparent. Or, there may be several planes, which fit nicely. The wisest thing that can be done now is to prioritize the list. The more options you have, the better your leverage during the next two steps involving letters of interest and direct negotiations. If you are having difficulty prioritizing, seek the assistance of someone that knows you and knows planes, too. Hopefully, there are at least 3 specific planes on your list that you would be happy to own.