q/1 the transfer is
a - new is no more than 25 player`s and on market for no more than 1hr 10 min << donkey market old market ( great ) 80 to 120 players and on list for 3 hrs
q/2 you can neg from level 4 but only if player`s are 5 star and 1 skill away from scout when level 5 you can do with 4 star player`s to be 1 skill away from 5 star and each level you can do same with 3 star and so on
q/3 with more tokens the better the price
edit; with q2 IF you get an offer for player you can set selling price then it`s just waiting for them to accept or not and neg goes for 24 hrs