04 Odyssey Sliding Door problems

Passenger side sliding door bumps and jumps when opening and closing, and most of the time needs help closing. Drivers side getting bad by the day. Pretty sure all the rollers need to be replaced (top, middle, bottom). Anyone know if there's a repair kit available to do this? Any idea on cost? Haven't called the stealer yet for parts, but they did tell me about $400 per side to fix this problem.

Look at the cable too. I've seen them "kinked" causing the door to jump around and not operate without assistance.