I highly doubt you will ever find original wood unless it is on a original rifle. These were only produced for a short time period, and in a small quantity (doesn't even just use the regular Kragicon stocks). You could possibly have someone make you a reproduction but I suspect it would cost a significant chunk of change (I could easily see in the 600$+ range).

I would enjoy it for what it is, to return it to close to original spec is next to impossible at this point without investing some serious cash (i.e. new barrel with the bayonet lug attached to it, new stock, new barrel bands unless you can find some).