"Budget" cars have come a long way. the Sakura XI sport is actually a pretty good car for having such a low price.
That said. Getting a used Xray and swapping in some new bearings is a near fool-proof way to do it in the cheap. Parts cost more, but you hardly have to replace them. I have a T3 2012 with the Exotek chassis I may be selling soon. But either way don't be scared of a more budget -priced kit. Spec-R is another one that is pretty good considering the price point.