Conv Rear Seat Removal, and top hydraulics replacement.

My 89 when I got it top is in bad shape from the hydraulics to the top. I am going to replace the motor and the cylinders look shot too. Should I spend the 100 for new lines? Also any tips when replacing the cylinders?

How do I get the rear seat back out!?!? The bottom came out no trouble. Any help advice tips or Pictures would be great with this project
 
Got the back seat out. Has anyone replaced the lift cylinders!?? I removed the interor panel and it looks like a PIA to replace them. Reason I want to replace is there is ATF everywhere and I suspect the seals in the cylinders gave out.

I got a used pump off E-Bay for 20 dollars figgured it was worth trying first, mine might not be bad. But there is ATF everywhere.