looking good but if your standard Radius arm front bushes are still ok then you dont need front bushes as the drop boxes wil take care of caster correction and teh drop boxes will probably sort out the gear box spacing as well.

Below is a link to the Superiors gear box spacer and it is actually the back half of the drop boxs so not required. you might think about a tail shaft spacer if your concerned about it dropping out.

http://www.ebay.com.au/itm/Nissan-Pa...item1e64acfc10