What is it about the size that you think might be too much for you? Carpets can be a lot more active then a boa of the same length so be sure that their activity is something you will be ok with. A buddy of mine that has many boas some around 9 feet but he still had trouble getting used to holding my 7 foot coastal carpet becuase of how active it was. He did get used to it but it did intimidate him a little at first.