Yet another permutation for you to try:
Start with 4 pigs, buy plant, upgrade once, upgrade storage and truck once. Sell off bears (as your storage room allows), steaks and spare hams (making sure you'll have 2 ready to go when steaks pop out). Also, click on the building a few times to speed it up if you have 2 hams ready to go and/or the truck is coming back soon. That way you'll be able to send a truck worth more money faster and max your steak production. If you only click on it a few times, giving it a break every so often, it shouldn't blow up on you.
Soon you'll be able to upgrade the steak plant to a 3, follow the same strategy to finally get it to a 4 if you need to. Click like crazy on the last batch and you should finish in the area of 3:15.