Please give us a call to discuss what you're wanting to do and so we can help you get your Keystoker order modified (if that is what you decide to do). Our number is 315-299-3589.
Keystoker orders a modified version of the Coal-trol Standard from us for their normal Coal-trol installation. If you're wanting to add the dry contacts to wire into your furnace control board (in parallel with the fanc ontrol wires coming off your existing thermostat for the furnace) it would be best to see if we can modify your order to indicate that you want this so when Keystoker makes the stove they can order it with your desired change from their normal control. Alternatively, if you want us to add these contacts after you've taken delivery you can call us to setup an RMA for service and then send in the control module to us for modification, however this will be at cost (when you call we'll quote you the price).
Finally, if you are planning to use a bonnet limit switch to control the Koker's fan (independent of the coal-trol) you can potentially wire in your furnace fan too, however this will depend on the ratings of the motors and the switch.
I'm sorry if I'm not being clear in my attempts to help you on this. There are multiple ways to accomplish what you're wanting to do, some involve the Coal-trol and others do not. Choosing between them depends on what you're hooking up to, if you plan to use the bonnet limit switch or not, and if you need parallel control of the furnace blower from both control points (coaltrol and furnace thermo). It is easiest to discuss this in realtime over the phone and that will best enable us to help you make a change to your stove order if that is needed.