Be careful with this. The SDIRA must pay all costs for the property directly. There are also restrictions on what type of property (cannot be vacation home, for your benefit, etc.). In addition, there are Unrelated Debt-Financed Income tax (UDFI) and Unrelated Business Income tax (UBIT) which the SDIRA may have to pay. I suggest you find out more from a seminar or a book. I used this book, but there are many.
The Self Directed IRA Handbook | SDIRA | IRA Lawyer
After considering all of this, I rolled DW's 401k into a fixed-income debt investment in real estate, which has no expenses and uses no financing. There are no tax complications and we get 10% before taxes every month.
To answer your question, the proceeds can be paid out to you each month, from the IRA custodian, as long you are over 59.5 or are taking substantially equal lifetime payments if younger.
I was bothered by the flat stock market last year also, so took a loan on my 401k of about 10% of the total and invested that in real estate. The interest gets paid back to my account. The downside is losing out on the compounding of the missing 10%, but it's small and it's easy to exceed market returns.
There's been some talk that RE is in a bubble, or at least nearing the top of the cycle. You getting a good deal on the bldg? CAP rate > 5?