I am also interested in this kit and it looks well made. A couple of comments however.
If i understand correctly, the strut spacers are 1.5" high which will lower the strut by that amount. You simply can't lower the strut tower bar that much before it collides with the inboard edge of the throttle body which is about 1.25" below the bar in the stock location. The inner fender is also about 1.25" below the lower edge of the strut tower bar. The strut bar will also not fit in the hole in the inner fender.
Here are some pics:


I have a couple more pics if that is required.
It seems to me that some form of metal spacer will be required to retain the strut tower bar pretty much in the stock location. I am not sure that longer bolts with perhaps a 3/8" thick wall tube 1 1/2" thick as a spacer for each bolt would work and provide the rigidity needed unless the 3 tubes were tied together with say a 1/4" plate. If 1" spacers (3/8" tube) were used and welded to the bottom/underside surface of the strut tower brace that may be sufficient.
The tube may need to be larger in diameter as the bolts are 10mm - just checked.
The other interesting thing is that the 2 inboard bolt holes are just notched into the strut bar so you could only weld about 2/3 of the the way around if you went the tube spacer only route.
We're almost there - just a bit more tweeking.
My thoughts for now. Comments?