It doesn't exist because there is a fundamental flaw in what you're trying to do.

It's fundamentally different from an initial syndication when every investor contributes capital to the entity.

The fundamental problem with wholesaling is that the only way wholesalers make money is to steal equity from sellers.Here's an real life example, where I saved my clients from an attempted $121,000 screwing at the hands of a wholesaler. https://www.biggerpockets.com/...Yes, there are rare exceptions where a seller will knowingly and willingly leave thousands of dollars on the table, but those are exceedingly rare, but in general, wholesalers profit from sellers who are either ignorant of the true value of their property or are in such a distressed situation that they have to take a bad deal to get out of a jam.Sellers do better by FAR when they put their property on the open market (MLS) and are represented by a competent Realtor. 

I just don't see the fundamentals pointing that way south.

Get the fundamentals in place first then move forward with a purchase when you are sure that it fits your strategy and goal, even if you have to wait a while.

This breaks the 1031 exchange fundamentals(like-kind) and so it is not possible.Syndication groups however can use TIC(Tenancy In Common) fundamentals to work with a few large investors and syndicate a large acquisition in this manner.

In my opinion, having won amd lost on many deals of this type, the very first thing you need to do is to start building a network in your target market.For me, this people first approach is fundamental.

Which you'll have to do anyways, since an estimate given without any details specified and not even a jobsite is worth less than any paper it might be written on.You are *begging* to be taken advantage of by not even recognizing this most fundamental concept, that there is no such thing as a "one size fits all" construction/renovation job, and that it is literally utterly and completely impossible to do what you are asking.  

How people adapt must a mastery of the fundamentals in my opinion will determine who will come out on top.That last sentence was fairly dramatic, but reading comments from 4 years ago and watching Hurricane Florence dump 40+ inches of rain this year and Harvey 40+ last year has me terrified for the superstorms of 2020.

I live in Hawaii and CA so I don't do TurnKeys since these are very profitable markets but it seems the total lack of valuation fundamentals is very common.