If you want to lock in $500 off the ES-6400 deal all that is needed is $1000 down with the balance with tax due when your fan is shipped or delivered.
List price is $1795 for the ES-6400 with 16 year warranty and infinitely variable speed. No other source has one.
Sale is $1295 plus tax of $103.60 or $1398.60
Balance due in April is $398.60
You can pay by cash, check or bank transfer.
Here are the testimonials.