I believe the cages are the same only difference is that the 182 is the new model that can be build without tools. The 142 isn't available new anymore, although you might find it used.
yup the 142 and the 182 are the same. only difference is the 182 is the no tool assembly.
but i've heard a few people saying they needed a screwdriver or hammer.
if you look on craigslist though i'm sure you could find a 142.
but there isn't any difference it's the same cage