I would say it's safe to say she's a Colombian BCI: you could ask the breeder what the pairing was to determine if she has BCC blood in her but I personally don't see much BCC influence.
Colombians on the norm get smaller than the BCC boas, so I would say she should get between 6-8' as a female. There are larger girls out there, but most top out around that size range. If she has any BCC blood in her she could get on the larger side of the norm. Can't help much with average weight.
I recommend you to need at least a 6' cage when she's full grown.