Rigellian Christmas Spaceship is a Christmas spaceship. That is why it stays set up for Christmas.
Yahweh's tasks work like this.
You do the seven 4 hour tasks labeled with Step 1 through Step 7 in order consecutively
each will only be available when it is time to do that job
Put Him on His tasks before using the Job Manager
Step 1: Realize He's Old 4 hr 260 cash 70 xp
Step 2: Join a Gym 4 hr 260 cash 70 xp
Step 3: Get on Instagram 4 hr 260 cash 70 xp
Step 4: Buy a Porsche 4 hr 260 cash 70 xp
Step 5: post Selfies 4 hr 260 cash 70 xp
Step 6: Go to a Rave 4 hr 260 cash 70 xp
Step 7: Keep the Party Going 4 hr 260 cash 70 xp
24 Hour job Unlocks
Step 8: Hire an Image Consultant Reward 24 hr 7 Donuts 225 xp
You must do them in this order with no other jobs done or it breaks the chain and you start over at step one
Start over at Step 1
As devilhunt stated, when you reach a certain amount of game cash the option to sell Kland tickets disappears. This is at 3 billion cash or so