Dear Contest Holder
I'm afraid I couldn't make an arrangement with you because it's violate designer code of conduct here's in LogoTournament ,
"Private arrangements with Contest Holders are unacceptable. (Example: offering additional free services during the contest if they select your logo) It is fine for a winning Designer to offer additional services after the contest is over." .
But don't worry I believe your request point 1-4 are covered on legal agreements between winners and contest holder. For the best designs for your contest, I suggest you to invite more designers to enter your contest by sending them private messages
https://logotournament.com/logodesigners , if you don't have enough time you can extend the contest, try to contact LT staff they can help you. I hope this will help you.
kind regards
Nizar