Hi Pals, I finish working with this model. I have seen that it is a fairly simple kit, without major problems for assembly, with very good instructions. The tracks, are the originals, which although vinyl and not the best option, are "Tamiya", which is always a guarantee of quality, and have been very easy to assemble (they are wide and with 4 points of union instead of 2). I have chosen not to overload with extra equipment the vehicle, because it is in question to choose between