Simply a case of keeping your 5 pigs fed and watered and not putting the bears in your warehouse
Get 5 hams and send them to the meat cutter
When they're done, send 1 steak to the smokehouse and 4 steaks in the car for 1000
You have 3 waters in this time - the initial one and two from the initial 50 and they are just about enough to keep the pigs alive until your car returns
Send the next 5 hams to meat cutter and when they're done, again send 1 to the smokehouse, you now should have 1 kebab so send this and the 4 remaining hams in the car for 1350
Repeat this a couple of times until you get over 5000, then upgrade the smokehouse once and send 2 stakes there twice to complete in about 03:00
Hope that helps