Seals for Remitop rooflight

Lyreb

We have a 2005 Autocruise Starfire with a Remitop sliding rooflight. We are trying to source new rubber seals for this. We have found them on Riversway Leisure web site but they come with 2 splash guards (which we don't need) making the cost just over £15
when you add on their postage of £7.49 this makes 2 small rubber seals very expensive. Can anyone out there help please?