Next question about the transmission. I see that you can buy the filter or a filter kit:
Transmission Service Kit - Land Rover Discovery II

Now Im not crazy enough to pay about $11 per liter of ATF fluid when I get it local. But as for the other parts in this kit... are they worth it, or should I just go with something like this:
Duralast/Transmission Filter (A/T) TF184 - Read Reviews on Duralast #TF184

Thanks in advance....

 

that filter and some dextron 3 you will be fine