i've owned BP's and corns for several years now, and now i'm looking into purchasing a boa to add to the collection. but are all boas up to 60+ lbs and grow over 7ft? i love the suriname red tails due to that rich red coloration in their tail but i keep seeing that they get sooo big, i want a boa that doesnt exceed 7ft and doesnt weigh nomore than 60lbs is there such a species?

ive done some research but it seems as though all the websites i visit have different weights and lengths of this species, another thing i was looking into was a boa constrictor imperator being as though they're the sub species i would think that they would be slightly smaller than boa constrictor constrictor but it seems as though they get as big as boa constrictor constrictor. can i get some advice from users who breed and have boas for some while now so i can get an idea of a full grown boa and what species or morph doesnt grow that big.