SDIRA - self directed RIA questions

[Jimmy Ready]

Hey!

So I am about to get a job as a police officer (woop woop!) and I know one of the questions they will be asking me is how much do I want to put towards a 401k plan. Now as much as my parents would love for me to sock away 20-25% in that account thats just not me. 

I am not sure if my job will offer an option for a self directed IRA maybe? If not would I just put 0% towards a 401k and then open a SDIRA with another lender?

My question is before I dive in are you allowed to get a traditional personal loan when buying a property through a self directed ira or is it considered a corporation and therefore you need a commercial loan. 

I do not want to get commercial loans because I have heard on here that it is alot more difficult to get a loan through and LLC for example when compared to a personal loan. Any advice would be greatly appreciated.

Thanks

Jimmy