2003 Designer Slide rubbers

[JoelandLouise]

I need to replace the slide seals around each of the push-outs. Unfortunately, our 32 RLTS is located just outside of Puerto Vallarta, Mexico so I will have to take it down in my luggage if and when I find them. The problems I have are: 1. What seal part number and were do I get them
2. What lengths do I need for each of the 3 slides

Thanks for your help...