How long should it take to fully replace inventory (old Monitors and Keyboards) in a 9 floor building with 50 workspaces on each floor do you think?

I am an intern at a new company, and I have been tasked with replacing inventory next week.
It's all new Monitors and Keyboards for the entire building, and all I know is that there are 9 floors in the building, and approximately 50 workstations to perform swaps at for each floor.
Since I've never physically done this kind of thing before, and since I've never used Experts Exchange before, I'm wondering if an IT professional could give me a ballpark estimate on how many hours they think this task could take if it was assigned to them.

Cheers and thanks in advance! If like to have some kinda estimate in my head by Monday morning if possible.

--That new kid
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RayData AnalystCommented:
How many monitors per workstation?  
Will the users be at their workstation (will you have to let them finish something before you swap)?
Are the monitor cables being changed or just the physical monitors?
Are these 'open' areas where access will be easy, or are the cables all neatly bundled (looks nice, but a pain to replace)?
Will the new monitors be unboxed and ready to place?
What about disposal/removal of the old monitors?

As you can see there are lots of factors at play and this can make the job run from 5 minutes to 30 minutes per workstation not counting transit time.

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ProfessionalFailBlogAuthor Commented:
Thanks! I think 30 mins per workstation was what I had in mind.
Kyle SantosQuality AssuranceCommented:
Ray has great questions and planning figured out.  

The only other thing I can think of in expediting this process is seeing if this can be a weekend task to minimize employee interference with your work. (If the company does not work on the weekends.)  Otherwise, another option is to work overnights floor by floor.  Its not ideal, but you would most likely have the building to yourself.

Last, make a high level announcement of how the execution will be performed, what will be required of the individual who uses the work station, etc.
ProfessionalFailBlogAuthor Commented:
Thanks Kyle,

I'll send out a distribution email next week on the details and actions.
Kyle SantosQuality AssuranceCommented:
Good luck with the job!

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