For those that are interested, there is an M103 on display at the 45th infantry museum in Oklahoma City. That thing is frikking HUGE .... !!!!!!!   I couldn't believe just how big it is .....  The one on display was painted in a green so dark,it looked black,too.  I don't know if they have a website but it might be worth looking to see as they had a large number of different aircraft and vehicles on display there.  BTW, the aircraft are all displayed on stands like model aircraft,too. Been a long time since I was there so I'm thinking I should make a trip in the near future.  If anybody gets a chance to pass thru Oklahoma City, they have a very large number of museums of every sort there.