I find it much more intelligible to just do the work directly myself.One thing I'm really not sure of (but would like to know).... is how far is the Flat Fee MLS broker's "reach" over my ability to sell thru alternative avenues outside the MLS listing service that I'm paying them to list on??? 

I would assume that if you are building the same cabin again that the new build would take a bit less time depending on lead times for materials as the crews have already done it once.What will the value be of the property once the cabin is ready to occupy?

What other alternatives is there?

More than the raw material, in my experience.

Your rehab costs, this is the hardest to calculate, will depend greatly on location I did a mostly cosmetic rehab in dc was 160k did a similar project just a 1.5 hour away it was 60k, materials assuming your not doing something super high end seem to be 25-35k for a a sub 2k square foot house, again labor is tough to calculate, but ask around your local market what people are generally paying for things4.

Since it falls under residential, I've called Allstate but I know there could be other alternatives who may be better suited to this type of product.

You are free to come remove it and take the materials down.If you do want the fence then of course pay the guy

Alternatively you can grant someone "power of attorney" and they can sign for you in the US. 

The material you provided could have been sold, but I am so grateful that you decided to share it in this public forum.

Section the circle off into buckets - label them "real estate", "Stocks", "Bonds", "Cash", Alternatives, etc.- Look at the allocation and make some assumptions about cash flow and growth. - Iterate on at least 3-5 more sheets of paper until it feels right. - Back everything about your financial plan into that end state. - NOW, run your draft plan by a CFP or three.