could it be that this is only some kind of confusion because there are different kinds of pounds / lbs?
there is a reason why the metric system is taking over. length of snakes is still in feet in the USA, but for weight of snakes or of the rhodents that feed them, grams and kilograms have taken over completely.
anyway, ill assume its a very big normal female BP. in that case i would say: as a pet or just to have it, by all means, go for it. But i wouldnt breed a female that does not have any genetics going on, prices for normals are shamefully low, too much supply for the limited demand.
online in europe ive found a few normal BPs offered for free, sub-adults, and adults ive seen starting at 30 euros. babys/subadults can easily be found for 20-50 euros, adults for 50-70 euros. For properly feeding the animal and keeping it warm you probarbly pay more for rhodents and electricity to keep the snake half a year. Thats not really bad because it makes access into the hobby really cheap, but producing more normals isnt a good idea i think.
so as a pet / for fun: yes, get it if you like it, if you get the equipment with it it might be a good deal. (and who knows what happens if noone takes it). and for breeding i would say no.