Any tank can be upgraded to IR, the question is how do uyou want to do it. You can go with all Tamiya electronics or you can simply get a DBC from Phil to make the HL Tamiya IR compatible. There are many different roads you can take with these things, it comes down to how much you want to spend.
I second the PzIII for a kick ass airsoft gun. Greg is spot on with that.I almost feel bad that I am going to convert my last airsoft tank to IR...almost</p>