KZJ71 prado chassis under a KZN130 surf ???

[damo4surf2]

hi , i was looking at putting a SAS KZJ prado front diff set up in my surf but have now got a whole prado chassis now and it look like it will be easier to just swap the chassis and get the better prado set up in my surf . im also doing a toyota V8 conversion at the same time .

is this a good idea ? or should i stick to just doing the front on the surf ??