My personal favorite tamiya kit is the WW-2 Russian T-34 / 85.
It is not as accurate as other T-34's but its lots of fun to build for those new to armor building.
I supose if you wanted to update the kit you could get p.e. set ,individual link tracks,resin turret and detail parts.
I have even seen white metal wheels for the tamiya kit.
If your new to armor then you will not want to take that plundge just yet.
armor is much more forgiving than aircaft.
so keep that in mind when building.
have fun and good luck.......