Main difference between a Hog Island and a Dumeril?

[Sarrix]

Hello, I am just looking to get info on the main differences between the Hog Island Boa and a Dumeril's boa. I am planning on getting one or the other most likely so any info about either or any big differences will be helpful. The viv i plan on using is 48Lx24Dx12H, so was also wondering if this would work for either snake;full grown.

Thanks for any help.