You would better add some plastic card to that list as well. As when they cast that model they realy didn't get it right. Also metal gearboxs..as all they have are a realy horrible plastic ones. You are also going to have to re-work that suspension system as its very weak.
Man will occasionally stumble over the truth, but most of the time he will pick himself up and continue on.
I would wait off and get a second hand Tamiya Leo I sold mine recently with upgraded bearings idler adjusters barrel stabiliser upgraded barrel and crew with the radio gear for £400 you would spend more than that upgrading a hobby engine one and it wouldn't be as good. Here is the link to the one I sold on my site http://www.tankworld.co.uk/leopard2.html" onclick="window.open(this.href);return false;
Stevie