I have gotten back into snakes because of my love for them and Herping. My two boys really helped get me back into the addiction again also. I have to build a rack system for my sub adults because they are outgrowing the original system I have for them. I do plan on breeding because my boys have said that they want to make certain snakes and I feel this is a great way for them to learn genetics and math without them realizing it. I have a den that I am going to remodel into a snake room that I will keep at the proper temps and humidity levels year round. Has anyone else doen this and if so what trials and errors did you go through? Any advice will be GREATLY appreciated and pics would be a huge plus.

Should I break down and buy a system that will house 50-75 snakes or should I build it myself?
Should I remove the carpet and leave it bare concrete or try laminate floor?

I have thermostats and shat kind of stuff I am just really wanting to know about rack systems.
THANKS in advance fellow reptile addicts!