Mark,
I've been playing with silver contacts in 11x14 via the Michael and Paula methodology for a couple of months now and was also thinking about trying my hand at alternative printing.

I've read here and there by some reliable APUG posters that a properly toned Kallitype comes darn close to platinum http://www.alternativephotography.co...kallitype.html. What format are you working in? If it is large this could be a factor due to chemistry cost.

Mike A