I asked my buddies on redtailboa.net. Short responses so far.
But everyone is on the same page. There ameralis.

There tails are plety short enough. 3-5 saddles. Def BCA. Any consrictor
will have long brillent beautiful tails.

I have a Guyana at 3 years. Almost 5 feet. Slow grown
yearling Suriname and sunglow. Much bigger than yours. By like 40something inches bigger lol. All have 7-10 saddles just for there tail.
Las far as breeding. All I have to say. It's safe to say those are BCA.
No doubt.
I breed boas. I raise boa. I know boas.

And if that hypo is het albino. . It's possible to make sunglows with a mate holding the same genes. Well albino in this case.
Heres that link
http://www.redtailboa.net/forums/boa...as-please.html