You should be OK with the BK-16 up against a wall since the horn does help direct a significant amount of mid to high bass forward (and low bass is non-existent). In other words, it's much more immune to the muddy bass effect when placed against the wall because of the directivity of the horn. I pull them out for better stereo imaging. The stands in my opinion are necessary.
I've been looking into local options. Madisound's price for the kit is very reasonable. A friend that owns a furniture company says the cost savings to route a box the size of BK-16 wouldn't be that much. And the larger enclosures like Kirishima or Victor will not be cheap. The BK-16 isn't viewed that favorably on DIYA (most saying it's a very old design), but they commenting on it without EQ. purrin do you have any thoughts on EnABL? It seems like voodoo to me... and I'm not too trusting of the guy that came up with it.
I think I am going to start a Vulcan when I return to town. Being in the woodworking industry as well I can certainly agree that the fostex kits are well priced.
I believe he had recommended the sigma driver with this and a tweeter, I was also thinking about the cornscala. Are you still leaning towards the Victor?EQ and follow this thread directly, I have a lot to learn but look forward to starting the process.