[For Sale] Common Red Tail Boa

We have a 6.5ft common boa for sale. With everything, including her current enclosure, which is a 75 gallon aquarium, all I'm asking is $300. When we got her when she was almost 4ft, and were told that she wouldn't get much bigger. Due to us never having a boa before, and seeing a lot of the other boas there, that turned out to be rainbow boas and sand boas, we got her. The last convention we had, we took her too, because we had a lot of questions, like is a normal for a red-tail to get this big, and to our demise, we had actually gotten a common boa, not a true red-tail, and was told that this girl would get to about 10ft. All I want is this girl to goto a good forever home, that can accommodate such a large snake. She has never been bred, and loves to go on walks around the neighborhood. The kids love her, but parents are always worrisome. She has never bit anyone, but has lunged at my hand during feeding, thinking it was the rat. She eats both frozen and live.