You get an Impulsor with tracks, because tracks are much cooler than the antigrav system (this is just my personal opinion). This is a complete kit for printing. Not all options are available yet (only the armament is implemented, rocket launcher and iron hail armament), but these will be implemented at a later date. For the tank domes or the alternative turrets, the GW kit parts can be used, these fit on the tracked Impulsor. There are two tail parts, one open and one with tailgate. Further variants are in planning.
The last pictures show the Impulsor in comparison with the Repulsor Executioner (track version).
Sanding may be required to make everything fit together. If there are any problems with the assembly, please consult the pictures or contact me. Use suitable glue to join the parts.