Is it not diesel? we had it 2 months ago, a oil seal from the injection pump was leaking into the timing belt cover. The diesel reached the timing belt so it became very weak and it did break.
The 36" Extreme Trekker is to bog for standard axles, you will break everything. We have now 34" Jungle Trekkers, this is in my opinion a better set up for standard Land Rover axles. Now I'm runnig the 36"under my C303, that fit's much better.
It's not 160 kg, I dont know the exact weight but I think about 80/100kg ( excluding wheels ) Its easy to lift with 2 persons. I own a couple of C303 portals, they are build much heavier and I think they are about 160 kg.
Don't put recovery gear in the drawer, when you get realy stuck and you cant open the rear door its impossible to acces the drawer. But I like systems like this. They are a nice solution.