I think the problem here is, noone knows wtf you're asking for.
Do you want a "Donkey Kong (2-board)"? As in, a 2 boardset, upright, Donkey Kong pcb?
Because if you're asking for a "Donkey Kong 2" board, no such thing exists.
You say you have the "savechip," does that mean you already have a Donkey Kong boardset that you installed said savechip to? If so, all you need is the $45 upgrade that Mike's sells to ADD ON to your existing "savechip kit." Then you will have a "sort of" Donkey Kong 2 gameboard.
So you either need a Donkey Kong pcb, or Mike's addon kit. Which is it?