I'm not exactly sure what you mean above by the bibles position Scipio?
Here is a Bible folded neatly in half. It is folded this way when one takes there time to carefully set it down in half:
The Bible near Sheila was not folded neatly in half by someone who is holding it from both sides and sitting it down:

One way the pages can get like this is if the Bible was not set down nice and carefully while holding both sides. Setting it down with one hand can result in such. This possibility is not sexy enough for some and is ignored in favor of suggesting the Bible had been in half flat on Sheila's body but then fell to the floor causing the uneven folding or being pushed closer to Sheila by the door or a foot.
If the Bible had been further away from Sheila's body then the blood that dripped down her arm would have gone to the floor instead of onto the looseleaf paper sticking out of the Bible. It is quit clear the Bible was next to her from the time she was flat as opposed to pushed there hours later by police.
Moreover, look how close the door is to her head, if the door were opened more it would hit her head as opposed to being able to open enough to push the Bible directly against her:
Where do the police specifically say they did not move SC's body to enter the boxroom? The raid team WS's imply they left the main bedroom and first identified the twins by accessing their bedroom from the landing. If this is the case there shouldn't have been a need for them to move SC as they could access the box room from the twins room. Raid team WS's do make mention of opening the box room door from the main bedroom but imply this was just to check the room. They make no mention of accessing the twins room from the box room.
Even after all occupants (victims) were identified, as per the info JB passed to officers, they continued to search the entire property with caution. It's possible for operational reasons they may have moved SC to enable them to access that room by effectively storming it. I don't get the impression the raid team relaxed after identifying the adult occupants/victims.
The appeal decision goes over the things police admitted to disturbing which means they denied disturbing anything else and did give an account in detail of their search. They specifically stated they didn't move her body in any way until after taking the initial photos.
They didn't walk through the boxroom to the twins. What they did was simply look in the door of the boxroom from the master bedroom to make sure it was clear. They opened it just enough to walk in not enough to bash her head. They then cleared the other boxroom and Sheila's bedroom. Then they went to the other hallway and found the twins and finally cleared Jeremy's old bedroom. The upstairs office had been cleared by going up the office stairs before they did any of the bedrooms.
Quite obviously if her body had been against the closet door they would not have needed to clear that room because the killer could not go inside it and then while inside move her body in front of the door. They would have worried about clearing it from the kid's room.