Uh newbie here, have Q's about Red Tails

[Squeaktoy]

Ahaha my brother was gonna take the 4 foot red tailed boa (5 yr old female named Guts) but he can't so now its with me. I just got a raise so i can get the necessities. I need verification if what I'm planning is ok. I also hope I can put the enclosure on carpet floor because unfortunatly i also have
One ten gallon of Hermit crabs
2 ten gallons of tropical fish
4 bettas
so there is NO shelf space in my room. None. But this snake needs the best care, so i plan on giving that to her. Here's my list.
Hideaway trunk of sorts
some branches
Water Conditioner
Feeding Plastic Tank (The lee's kritter keeper rectangular breeder looks good for that)
Main Plastic Enclosure 6' X 24" X 24"
(I dont know how I'm gonna get that, I'm 5'5'' and I dont have alot of room. I may have to move some stuff around in the corner of my room to get it in
Ceramic Heater bulb and any attachments that needs
More/bigger water dishes?
Squirt bottle
Tank cleaners?
Humidity/temp gauges
Humidifier

Any suggestions and please don't go over the top, she just needs to be ok happy. And i will have to be going to Petco for this stuff, its the closest pet store to me, unless theres someone else here in Las Vegas NV that can suggest a good store, i gotta go there for supplies. Thanks for reading,