Hi
i am familiar with this kind of work and do it a lot, since i have my on LLC here, mostly for web design. Also, i am free and willing to start when you want, i have some free time for next few weeks, but for later, if needed, i do not work alone. About the project: as i see it, provide me with the PSDs, and tell me how exact replica you want it to be, but keep in mind that what computers screen shows might be different on mobile..... So i will try to keep it all look alike and functional, but if i got stuck, i will ask for advice.
Next thing - do you want demo content modified or build pages from zero? Maybe, if psds allow it, it might be easier to build them as child theme from zero, but since i have no idea what final result will look like (at least not for now) i can just say that i will follow content of psds and ask something else - if there is some sort of plugin that is needed for proper funcionality, and its a paid one, or custom one, will you provide it?
Time frame of 5 days is more then enough, i usually do it in 3-4 days, but again, i dont know how many different pages it will be, so i gave it 5 days, just in case.
If you have any questions, feel free to ask.