So you think maybe a wide contact crimp on ribbon cable connector such as
HWS5092
or
HWS15322
from
http://www.king-cart.com/phoenixent/product=MALE-IDC+CABLE+MOUNT+.1SP+IDC+HEADERS+%2526+DIP+IDC+PLUGS/exact_match=exact
with one row sitting on the power bus rail, and the others sitting in the individual 5-hole rows?
I think liudr was offering something like that as a ready to plug in cable a while back, not sure where you can find it now.