When in doubt, read the instructions...

That was always sage advice.  In the case of setting up the arch, the instructions were often a source of consternation.  Take for instance, this passage describing a tertiary installation of insulation that was not included:

For Raised Flue Arches with multiple baffles only, once the bricking is completed it is time to insulate between the baffles. It is recommended to fill between the baffles with a light weight pour-able insulating material to within 2" of the rail of the arch. For the last 2 inches mix dry cement and the lightweight insulation together and finish filling level with the rails. Once the area is completely full dampen the top of the area between the baffles. Once this dries the concrete will harden to keep the lightweight material from moving during operation and flue brushing.

Being unfamiliar with light weight pour-able insulation I called Leader for clarification.  Long story short, I was in need of vermiculite. 

Both the previous steward of the property, who has been invaluable in helping get this contraption together, and I were dubious of mixing such with cement in a manner that would be homogenous enough to do what the instructions were indicating. Plus the recipe seemed nebulous in proportions. We both came to a conclusion that backer board, when sealed with refactory cement, would do the job.

With all of the insulation in place, the next step was to place the pans on top and start making all the plumbing connections.  At the end of the day, we had somewhere around 30 hours over 5 sessions to get to here:

The following task was to put up the holding tank which will gravity feed the sap into the evaporator.

With this done, one more day is needed to plumb between the two and boil water with baking soda in it to remove any residue from the manufacturing process.  This firing will also help to cure the caulk and cement that was used to line the arch with fire board and brick.  Once fully cured a boil proper should see flue temperatures hovering around 1000F, if I am consistant with my feeding of wood.  Still a few tasks to complete before that happens...