I think you might run into several problems.
1) the Bedrock stands would lower the neopanel and tweeter to below ear level, which would likely lower the soundstage proportionaltly
2) there would be a significant gap below the front edge of the speaker which would not offer the "boundary" a beard would offer.
3) putting the tweeter and Neopanel closer to the floor would present "floor reflection" even though they have limited vertical dispersion.
The ROOTED BUTTRESS by Mapelshade however might offer an excellent stand if it is placed off the cones and built high enough (usually 20-26 inches)
Why not just find an old pair of used speakers, screw and glue a piece of plywood over the drivers (to keep them from moving) either paint the whole thing black, or if you're handy, veneer it to match, and fill them with sand. (not in that order)
Voila...perfect 626R Pedestals.