At this point since it's after the fact while not totally correct; you may explore adding the missed asset/basis amount as a selling cost to just reduce your gain. 

Or taken in escrow.Free and clear you have an asset, you need to answer some numbers, before you make a decision.

I can’t comment on anything the wholesaler did to obtain the deal, that I’m not sure.

They should be able to teach you about asset risk, neighborhood risk, lay out A, B, C and D class areas, have stats on delinquency trends, vacancy trends, and other variable cost projections. 

Short term (12 months), low loan to value with borrowers who have strong credit and significant assets.

Is this potential $700 cash flowing asset worth it?

You'll generally still need some cash or liquid assets to get the deal done though even if they fund 100%. 

It is more expensive but may not require an appraisal and can close in a couple of weeks. if I can wait then I use the most competitive rehab. lender after obtaining multiple quotes. 

Asset Condition 3.

Confirm that the IRA LLC provider will prepare all of the documents needed to not only form the LLC (articles of organization, SS-4 to obtain an EIN) but also the documents needed by the trust company to process the investment of IRA funds in the LLC.3.