I'm not jealous of other people's excessive gear. But what is bothering me, is that the tendency of tying up all your availeble money in "stuff" and then thinking that this traveling thing is so expencive - that they never get going. And that is a shame, becourse cheating youself by placing financial or mental barriers in front of yourself, you will miss out of the experiences that should be your end goal. That is, if you WANT to go places and see things. I know that some people don't, but let's assume for argument sake that they do.
What I'm saying, is that the G is in factory design a very good vehicle for traveling. It can take some very punishing conditions. Putting on boutique designer portal axles, 2000 USD roofracks and other kinds of bling, is not a requirement and serves mostly to build something that looks great / mean / tough.
You put out a number of 50.000 USD and say- that it is not enough. I'd say that it is a very good sum to go traveling with, you will have no problem exploring europe and a large chunk of africa too. Museums, campgrounds, gasstations, ferries, local attractions will all welcome you and you will go far.
What I'm trying to say, is don't waste your money or life in waiting, GO!!! as it is not that complicated.