Will I get penalized by AirBnb algorithm or confused guests while waiting for the professionally taken photos? [OP]
No.
Can I have put my listing into a paused/ unavailable state to do the necessary setup and only open it up when I'm really ready? [OP]
Yes, if you want.
Both replies are valid and they gave you some good advice.
[A.] D it yourself/ natural lighting
[B.] Use a pro, as photos are v. important.
let me tell you something else...
[1.] Many people do photos themselves, not all manage good natural lighting...If you go this route...try several times, do it 'from 12-4 PM and with best mob. ph. [cam/resolution] you can find.
[2.] Professionals, [from my experience] he/ she will come and might not even take your input at all but go 'formal style as per Airbnb protocol] Camera will be mounted on a tripod, [90cm-120cm] and afterwards you will find out there are no proper angles, it will be a 'child's view' [of course adults dont see things are that level] and maybe even 'too bright' [or filters applied] You might not like them AT ALL.
Furthermore, I discovered [contacted privately - few refused: we dont do properties ] this part is almost like a sub-branch of photography. Not only some might not do it [weddings, parties, portraits etc they do] but even some who accept are not v. good at it.
So either way do not expect perfection
however now that you know the options,
the choice is yours. Good Luck.