this thread is old, the ig has probably been adopted by now of the owner would have replied before now. I don't know where youy are located, but i do know that iguanas are always needing a home, check some other sites:
http://market.rescuenetwork.org/index.php?cat=10
as of today, they have two ads for igs that need homes, I'm sure you could work out a pick up or shipping if the owner is willing to. However, i would also check out local rescues in your state.
http://www.anapsid.org/societies/#lists
you can google iguana rescue and your state and probably find at least a couple. I know you would like to surprise your boyfriend, but you may also want to plan ahead before you adopt to make sure you have enough food and anything the iggy might need, and set up a spot or two that is his place to chill. i know a lot of people let them free roam, but you should probably clear out a room that is just for him/her to chill in in case of any emergencies or unexpected visitors. whatever, anyways, if you would like some help, i have a lot of bookmarked rescue sites and i can look for ones that ship or are near you specifically if you wnat to PM me.
GOOD LUCK!!!