Lol you have absolutely no worries with your Avante, Dan
Had a shufty at your pics and its pretty much spot on ! Even parts that sometimes get lost or missed off like the F&R shock tower braces are present & correct. The front ally sus uprights look correct too ( the first generation Avante's had uprights with no strengthening webbing ) replacements and later cars had added webbing on them in the vain attempt to make them stronger... no hope
Things like the screws seem original too - one clue is the rear gearbox top. The 3 rear long top screws should be black machine screws, but the side one should be a zinc self tapper... which again looks all present and correct !
Bodies been done very well, driver is also very good. Really, what you paid for it is, in my opinion, very, very fair. Especially with the Technigold & CPR & radio.
All you need now is a nice original Tamiya black Ni-Cad pack and its perfect !