Yesterday I was forced to cycle a couple of miles on a completely flat studded tyre (700cx32 - the one with only two rows of spikes). Unfortunately this means that the wire bead is quite deformed and when pumped up the tyre just won't stay on the rim. I think, however, that a wider rim (mine is a DT swiss TK540 - outer width 23.6 mm I think) and maybe a slightly deeper profile would allow it seat ok.
It's got very little use - if anyone wants it and thinks they can resurrect it, please let me know.