I have a 4.5 ft male iguana and trust me when I say they are a pain. Daily feedings, sometimes twice, which ends up turning into poo once or twice a day. Nails are extremely sharp, mines not mean at all but I have scars on my arms from his nails. They require HUGE amounts of space. I could probably fit every single tank and tub that I own for all my reptiles and feeders and there would still be extra room inside my iguanas cage.
I would def. go with the dwarf burms.