Discovery 1995 ES Water Ingress Passenger Footwell

sorry its a bit late now but anybody who has the same problem in the future i found that nothing of the above things applied, it was dripping because we had a new front window screen and the guy who did it didnt replace the seals with land rover ones so it let the water in but soon fixed with some sealent at the bottom of the window screen under the rubber flaps. hope this helps any one else