On the hop ups the Xray is much less equipped than the Tamiya. If you add the upper clamps and alloy shocks its really a big money kit, I think by far the most expensive.
Nonetheless you are right to go for the Xray.
Although the Tamiya comes already with these items and is cheap to run if you buy spares abroad, half the price of Xray, you really need a collection of toe blocks which adds quite a bit to the cost.
Whilst the plastic shocks are fine, I recommend you opt for the alloy shocks, they are excellent quality, easier to build and set correctly and very durable and consistent.
I have a 417 and a T3'11, I think it is hard to find fault with the Xray TBH, its just a great package right out of the box.