hey Jeff, I got some bad news buddy.
Oil based paints can offgas for up to 5 years!!
I tried the Varathane myself cause it's advertised as "baby safe"- well, I guess they don't think much of their baby's.
What I did with mine was seal it with Varathane water based clear finish (any good water based finish should work) After a few days the smell was gone.
Most of the bigger paint companies are starting to produce water based or solvent free paint that is a lot safer to use on cages. Of course it costs more.
Good luck
Keith