Too ambitious to do bathroom repair myself??

[Jennifer Cheu]

Hi all, 

Bought my first owner occupy multi family, and decided to live in the most runned-down unit to do some repairs.  I'm a mechanical engineer by trade, but have little to no real estate repair experience.  I enjoy reading up and learning how to do fixes, and want this experience as I dive into real estate. 

Need some feedback and advice here, is this job too big for a newbie?  What are the main safety concerns?  What is the material/tool list? 

I did get a general contractor to quote the job, he said 1 week, $2k to redo floors, $6k if I want a new tub and toilet. 

- Wet rot down to bottom most layer of floor boards

- Cracked tiles

- Rotted beam next to tub

- Re-sheetrock and put shelving back together

- Bath vanity set aside but not damaged

- Tub is metal shell type, not solid

- I can live without a bathroom for a few days to 2 weeks. A friend can help when I need 2 people. 

Any feedback is appreciated!!