there are a few possible options
1)(a) see if your schematic converts to a gEDA gschem schematic with an Orcad->gschem utility called Sarlacc, which requires an older 16 bit export format, it seems, consisting of
sarlacc_schem and sarlacc_sym
found in the geda-gaf package, i.e. see
1(b) exporting a kicad netlist from gschem
i.e. with something like:
or easiest of all
load the gschem generated netlist into pcb-rnd, which can save as a KiCad layout
2) generate some good example screenshots of some schematics that go with some corresponding generated netlists, zip them up, and have a chat with the lead dev at http://repo.hu/projects/pcb-rnd/ who has developed some very modular netlist import module code for pcb-rnd. With your help, a netlist import module could be coded very quickly, after which pcb-rnd can then layout the board, or export a layout in KiCad format for you. Mentor graphics netlist import was recently implemented very quickly with the aid of exemplar schematics and screenshots provided by a Mentor graphics user.
3) implement orcad netlist import code in KiCad
4) write a conversion script, or modify Sarlacc if the Orcad format hasn't changed much since Sarlacc was written, to convert the schematic directly into an eeschema schematic.
5) further reading: