But just remember, they are not all the same!
M*d*rn B**k**p*ng - top bee space, same footprint as BS National, only holds ten frames (which is no bother whatsoever). Easily modded for bottom bee space timber supers, if you wanted to, I would think. Likely there (stocked), but awaiting Stoneleigh as launch date, is my guess?
B**h*v* S*ppl**s - larger footprint than BS National but takes the standard eleven frames. Bottom bee space. Box jointed boxes (rather than closed joints, I believe) so may not be as robust as the MB offering (in extreme abuse situations! - the way PH treats his polyhives!!).
WFP - Invisible and likely to be for a long time - but I am sure WFP would allow anyone stupid enough to part with their money now (on a WFP promise), to pay now and perhaps/maybe/possibly collect later!
There again, you might finish up with a b**h*v* S*ppl**s, or other, version instead (at a much later date than you expected).
RAB