From where you are Ken....I wouldn't waste the gas money. The best of the tracks are at Benning. Benning opened a new museum several years ago dedicated to the Infantry.....now it looks like they are turning it into a museum for the ARMY including all branches IE Infantry, Armor, Arty and etc.
The tracks /vehicles that were there (Knox) in the late 50's have either been sold to private collectors, other Museum's IE the Tiger being returned to Germany (I think Munster) in running conditions.
The same can be said for Aberdeen the weapons that I saw in 1961 were gone when the Home Six and I went there again in 1984. Items you will never probably see again: a German K3 cannon(24cm) a Czech (German) built 10.5 cm Howitzer on a cruciform trail, Anzio Annie (28cm Railroad weapon) in her original color, not what she is painted to look like today (when they repainted they covered over ALL the original markings).
Between both of those museum they probably had every variant of the German 250 and 251 half tracks ever made. ) In 84 I asked the Curator at Aberdeen " What happened to the German 1/2 tracks" and he told me they had all be sold...I was floored!
My contacts tell me that most of the weaponry at Hood, Lewis etc will be moved to Benning.
If you want to go to a small good Museum....go to the one in Auburn IN. Ask Chuck....he knows where it is. Our club and MAD met there several years ago and had a swap meet afterwards....great time and we need to do it again.