Thanks dude, The upper plate at the rear is a custom made one that came with the tvp's that I bought used. The extra Alza parts in the chassis are:
Servo plate http://shop.alza-racing.com/en/standard-flux/4-servo-plate-standard.html ,
Skid plate http://shop.alza-racing.com/en/xl-flux/17-skidplate-xl.html ,
A few of these http://shop.alza-racing.com/en/savage-nitro/23-chassis-brace.html ,
The Shocks in the picture are rear shocks from a DEX8 but that picture was taken a few months ago and things have changed since.
The shock towers are from Innovative-RC, the battery trays are from a Team Durango DEX8 as is the receiver box. The center diff is made up from Team Durango DEX8 internals and casing with steel cross shafts and using a 50t steel spur gear from an Arrma typhon.
The quality of the Alza parts it outstanding as is the Innovative-RC stuff. I could have bought a new truck but this is a lot more special due to the time and effort it has taken to build it and make it all work.