All the chipmunks I know are on permit now so not eligible for IFR.
The others you have listed, a quick GINFO check reveals tiny numbers and a good few of them are permit to fly rather than national CofA. A quick check would show around 20 suitable aircraft and all seem to be in private ownership.
Not what I would describe as a viable training fleet.....
Last edited by S-Works; 24th Nov 2013 at 12:54.