ok - i've done it several ways, but this is fairly easy to follow and you don't have to rush:
as soon as the truck drops, sell 3 pigs
trap 2 bears, send one to the warehouse keeping the other one still trapped
collect as many milks and pork chops the warehouse will carry and immediately send them to process
the truck will return - send out the bear and send the trapped one to the warehouse
upgrade warehouse 2X
upgrade truck 1X
when the truck returns, send out the bear, 1 cream and 1 pork chop
upgrade truck 1X
trap 1 bear and send to warehouse, the other one will run over the first pork processing plant, but it won't hurt your performance
upgrade warehouse 1X
upgrade plane 1X
trap 2 bears, send to warehouse (repeat once)
send truck with all butter and 4 bears (the fifth bear won't fit on the truck)
when the truck returns, you should have enough to buy a cow
send plane for 10 milk & 10 bacon makers
upgrade truck 1X
send truck out with all butters
buy a cat and/or some dogs
upgrade the well all the way so you don't have to worry about water
send truck with butter or cheese/bacon/bears in that order
send truck with butter/bacon
upgrade butter factory
you'll finish easily under 4:40
good luck