Looks great! You will love it. I'm impressed with the progress you've made too.
Back in the 2 or 3 seasons I boiled on a wooden floor I made a platform using concrete blocks and capped it with a sheet of 18 ga. galv. sheet metal. It gave me a raised platform of 8" with a hearth out front. The Hearth stuck out 32" in front with a 1" bend down on each side and the front to keep sparks from getting to the wood floor and on my 2x6 arch the hearth was 46" wide (also with 1" folded down on the sides. Then a second sheet of sheet metal, also 18Ga. went under the first piece about 3" and extended under the firebox. That part was only 2" wider then the base of the arch and it also had 1" bend down on all edges except where it went under the hearth cap. I then had one block under each rear leg for height.
While I never had any problems with the wood floor, I was far more comfortable (peace of mind) after I removed that wood floor and put in the concrete. I used to use one side of the hearth width to stage my next fueling of wood on, it was quite handy.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.