So now it comes a long row of drivetrain metal upgrades: tracks (either HL or Mato), drive wheels, gearbox, all metal wheels, steel+brass gearbox all added to original Heng Long Hull.
Finally I can get Mato full-metal hull and keep the Heng Long plastic top.
And on the top of that I can get a full-metal Mato so at least I dont' have to upgrade the metal

So my questions are - what is the best approach for a starter?
- do I really need all those metal upgrades - how many extra miles would I get out of metal drivetrain parts comparing to plastic? Maybe it makes it move or look more realistic? I'm not sure whether the tracks color is realistic or I'd need to repaint them and keep repainting as the paint peels off?
- is it worth getting the plastic and keep upgrading it or get it already upgraded as much as I can afford at the moment (Heng Long top hull with Mato metal bottom hull or even full-metal Mato)?
- which gun is better Airsoft with no recoil or IR with recoil? I plan to drive it around for fun no battlefield yet.
- how difficult is to repaint plain HL or Mato into my favorite green camo?