Fish Tank in boot

Hi all, can anyone tell me where to get a new rubber door seal for my hard top at a reasonable price, or what to use to repair the one in there. It leaks where the glass meets the back door when shut as there appears to be a crack in the seal on the bulbous part at the bottom.
Cheers, Steve.
ps MAF sorted and works great thanks all.

Are you certain this is where the leak is - many Freelanders had the problem of water running down inside the tailgate door and instead of draining outside, the water would run into the boot.

Go into search ,this has been done to death