New Royal, have some questions/concerns

[Epheli]

Hi all!
First post here. A little bit of background, I used to keep two corn snakes back in 2006-ish, but had to give them up when I moved away. I've always loved snakes and, being in a better place now I've recently gotten a beautiful royal python, Albino Enchi morph. This is her (my partner is holding her):




I did my research, as much as I could before getting her, and set up the viv beforehand. This is the setup:



The warm side is on the right with the ceramic heat lamp, and is controlled with a thermostat. I also have a seperate digital thermometer measuring both sides of the viv and a hygrometer - you can see them all at the back of the tank.
The substrate is this stuff:



Apparently it's from the same tree as Aspen but is less dusty and powdery?
The snake herself, the viv and all accessories came from the same reptile shop, However I had a lot of discrepencies between the advice that they gave me and stuff that I heard from a friend who also keeps a royal in a bioactive enclosure, as well as advice online and I have a couple of questions and things that I need to clarify.

Oh, this is the thermostat and its current setting, this was also recommended and fitted by the reptile shop:



And the current temps (IN is the hot end, OUT is the cold end):





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So, questions:

1. With the current setup, the temperature for both ends tends to be about the same, hotter on the cool end during the day (I assume this is due to the light that they fitted), and a little cooler during the night. I'm worried that the viv doesn't have enough airflow. Can anyone advise? I was wondering whether to cut a hole on the cool end, and nail some mesh/ into it to create a bigger vent hole and hopefully cool that end off?

1.a. I guess a follow up question is: Is this viv suitable for this snake?

BTW, the hygrometer usually reads just north of 50%, rarely ever under that. When I spray mist the viv and the spagnum moss inside, it steams up and the hygrometer hits 99% (it only have 2 digits so "somewhere north of 100% humidity", settling down within a few hours)

2. Is this substrate suitable for a non-bioactive enclosure? It's very aspen-like.

3. She has been feeing fine (we've had her for about 5 or 6 weeks now) but the only poops she does are these tiny, hard, white lumps, not any "regular" poo - is that normal? She's been eating a smallish mouse every monday and hasn't refused a feed yet.

4. Is her current food intake appropriate? These are the mice that we're feeding her, I don't know what they're officially called but here's a photo, they measure about 8cm long, nose to foot, as seen in these photos:




She's currently eating one of these per week, on a Monday. I can't take her out to measure or weigh her right now because she only just fed yesterday, but there are a bunch of photos here:
https://ibb.co/album/cApzBF

Also, just an idle curiosity really but I wonder if she's blind or has poor vision? I know that albinos of certain species have this trait and her eyes are red, she bumps into things a lot. Also, because her eyes are always kinda cloudy and her skin is fairly pastel I've not been able to tell if she has gone into shed, though she hasn't shed yet (which is also kind of odd, I thought they tended to shed monthly-6 weeks-ish?)

So - yeah. I mostly just wanted to check whether you all thought that the gear, food, substrate and viv that I was sold and have been recommended by the reptile shop is actually legit and and good, or if there are changes or improvements that I could make, and how to solve the issue with the temps being the same on both sides?

Thank you all for your time!

Edit: Also would it be worth taking her to a vet to get registered / get her on their books? Or is that generally not useful/needed for snakes?