As others said, Hog Isle Boas (Cayos Los Cochinos) aren't deemed dangerous.
It is important to know though that out of the dwarf variants of the BCI complex, they are some of the largest... in a way, they are kind of "the biggest dwarf Boa" if that makes sense.
On a forceful feeding regiment(which is very unrecommended for tons of reasons) their size can even rival that of Colombian BCI who aren't considered dwarf at all.
The facts should also be presented straight- a keeper in the US was killed by a Boa Constrictor Constrictor... and I would not be overwhelmingly surprised if an idiot got himself killed by a size-gifted BCI one day as well(an act that would require heaps of amazing stupidity but if I humanity always has stocks of those a swell
)
Snakes generally would do best on their own... minimal interaction with other snakes and definitely other animals is advisable due to health risks- Cryptosporidium is definitely one such threat(and I am talking from experience as it pretty much decimated my collection).
Which is why I wouldn't feel comfortable just saying that they can hang out... they probably can, but in the years I kept Boas... which is not that many, I have seen just about every single possible complication in keeping Boas... risk management is preferable IMHO.
BCI are generally calm and make excellent handling animals... the risk is very low really, and taking a Hog Isle is cutting even that small chance by a significant factor.
If you -really- want to play it safe though, I would say that Nicaragua Boas are definitely something you should consider... these Boas remain very small, are much more slender, and can't really pose more threat than a Ball Python... all packed with the much appealing temperament of Boas.
Sorry for babbling... I am trying to give the complete picture for you to sort out as you deem fit.
Best of luck, Boas are AMAZING.