In light of this, I have been exploring the possibility of pursuing creative finance options, specifically seller finance deals, as a potential means to achieve my goals.

However, there are better options than $180 a month and $1000 for a WP site. 

Home prices have decreased over the last 18 months so there is lack of good options and values still above normal. 

Real estate is not the end all be all panacea for building wealth, there are a lot of other options many of which will give you way fewer headaches than real estate will!

Also be aware of Unrelated Business Income Tax (or UBIT) on leveraged real estate inside of an IRA.Or better yet, since you are self-employed - go with a truly self-directed Solo 401k plan, which would be a much better option and will help you avoid the UBIT on this investment.

Willing to exhaust all options as this is a big fish. 

Like Jay said, there can be more flexibility in repayment options. 

@James Tobin  yes FHA will be a very low downpayment option for you.

Explore the possibility of doing liability insurance instead, if you don't have much equity it may be your best, and much cheaper option.  

Explore options like conventional loans, DSCR, seller financing, or partnerships, and connect with local lenders to find the best fit for your strategy.Good luck!