Drivers seat foam replacement.??

Has anyone used the Exmoor replacement seat squab for the drivers seat? Mine is not bad support wise in the centre, but the outer rise part is not as good as I want it. The wifes only 5ft nothing and tends to slide out the door, instead of using the step, so thats done it in a bit.

Is Exmoor the only supplier of these? Done a quick search and some guy was asking members about making and supplying these. Does anyone know about him?

I have used them on mine seem ok

Isn't the passenger side the same? Swap em over or get a donor seat, I was looking at this on the p38, all the available drivers seats were shot so I was going to put a passenger vase on. They looked the same