Basis and SHST Math Check

[James Quillen]

I would like to ask for others to check my math here.

I will be househacking. For ease of example, we'll say I will be living in 33% of the house while the other 66% is for rent. When calculating my basis, let's use an example of the purchase price being $400,000 and I've figure the land is worth $100,000 and the structure is worth $300,000.

My questions are: 

1) Will my basis be $200,000 (66% of $300,000) for depreciation purposes?

2) Will my SHST annual limit be $4,000 (2% of $200,000)?

Thank you for the help.