I am in the same boat. Did you figure anything out? I read a review in which the person tried ordering the kit a few times and was then told that it is not necessary as any mattress frame could be used. I don't understand what is meant by that.
I haven't tried yet... but my baby is escaping so its time to do this. My question is does the front of the crib just come off and then the remainding 3 pieces keep it together? And it looks like you just attached a universal side rail? Is that correct?