Don't know if you've gone past this point, but here's a couple of easily made tools for under the cheekpiece...an aluminum rod and a flat bar stock.  I've simply "crazy-glued" the portions of band saw blades. Works fast and slick.

Yeah...I know...a little confusing...should have been posted on "Gunsmithing"

Duane,

Thanks for the pic. Any reason why coarse hacksaw blades couldn't work as well?

-EK

Yes, but I don't think you'll find any coarse enough for effecient wood removal

Duane
Do you know how many TPI (teeth per inch) in the saw blades?