Sun SCSI cables

Hi, I posted this to the rescue list but have had no response :< So, I'll try again, here... ------ I've been trying to move my various peripherals into 611-type cases. Hopefully, get things a bit better organized. These stack nicely with ~12" (WIDE SCSI) cables to daisy chain from the OUT of one to the IN of the next. But, some *other* cases aren't quite as well-behaved. For example, stacking anything atop a 711 case requires a slightly longer cable to tether the 711 to the 611. Likewise, a 622 (?) needs a "cable stretcher" to span the gap to an adjacent 711/611/etc. Did Sun make *slightly* longer wide cables? Like 18"? Obviously, I want to use short cables to keep the chain as short as possible... And, can anyone suggest a good source for the ~12" and similar cables? Is there anything else I should be wary of? Thanks! --don