I have pure SD Retics. Same personality as a big snake but much smaller. Pure SD max out around 4-5' males and 5' females. The morphs are crosses typically and get much larger. I know of crossed SD getting 10-15'. That's a lot of snake to handle. Mine stay in 32qts right now but will probably end up in 41qts as adults. You aren't going to find a ton of them out there, at least in pure form. Lots of people have crosses and morphs if you're into that. That just isn't my thing for SD Retics.
Regards,
B