The cost of the engineering is only minimal when you consider that the modifications still have to be engineered. Even my Reynolds-Boughton 6X6 which was a LR factory supplied unit, has to be engineered because it has never been registered in Australia. It's just had it's first engineer review before I start building it back up.
My point is that it would be better to start from a blank piece of paper and build up something good or excellent from scratch on a standard Defender chassis which you modify to your own design rather than spending the extra dollars to buy an already built 6X6 that you have to throw away thousands of dollars of gear that isn't what you want.
It's just the humble opinion from someone that already has a 6X6 Defender.
https://www.aulro.com/afvb/images/im...014/12/838.jpg

