This is still 1/8 truck, it is just scaled to 1/5. So not much weight added.
Things for remove
Dogbones 26g
Battery boxes 252g
Radio box 121g
TVP's 179g
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removed: 578g
5mm TVP's 867g (3mm tvps 505g)
battery plate 78g
servo plate 48g
6x brace 72g
dogbones 135g
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added: 1200g (838g with 3mm tvp's)
That gives us 622g added to standard flux weight, with 3mm tvp's only 260g added.
TVP's and plates (lipo/servo) are 7075 aluminium.
Here is another picture, so you can see how much the 1/5 motor sticks out of TVP.
Dejan