I just got done building an NOS sears Kentucky rifle. It too had that 2 piece beech looking stock with severe clash. I got rid of the brass separator and cut some end grain ash, that is, with the grain of that running the same way as the other pieces, to take up the space and used a machined steel tube as extra support in the ramrod hole where they joined as well as the 2 steel dowels it came with. Goofed up using the ash, it is a lot lighter, but it is what I thought would be good for that since it is porous and would absorb the slow setting epoxy used. What I found, Feibing's leather dye in medium brown, pretty much a striking look with hints of red to it in the sun or bright lighting, did the trick and you really have to look hard to see the grain difference or clash between the fore end and the stock proper. I believe this uses alcohol as the dye carrier, it's not oil. I applied one application then used a brush with more to mimic the grain that was lacking on the fore part and got rid of the ash spacer that way. Prep is rather different with that type of wood as opposed to cherry or walnut, maple. After shaping I went to 220 then after wetting to raise the grain, and that beechy stuff has an abundance of grain that likes to raise, I then used that purple 320 grit paper with a block followed by hand. After applying the leather dye, letting it dry overnight, I judiciously used fine steel wool to lighten up certain areas. After using a tack cloth, I sprayed it with minwax interior clear satin poly thinned with Nason automotive base coat thinner. First coat soaked in and looked blotchy, but I expected that. After an overnight dry I again went over it with the 320. 2nd coat, much less soak. This time, after the overnight dry, I wet sanded any imperfections out being very careful not to break through the finish, followed by the fine steel wool, more of an adhesion promoter than anything. My intent was to do 4 coats but after the third coat it looked great, and I know when to stop. Sounds like a lot of work and it is for a cheap ass gun however the results speak for themselves. I know that there is no way anybody is going to finish one of these in traditional methods and get anything even close to looking this good. The wood they use on these dooms them to having to be stained and finished in this manner or similar. The downside is a nick or scratch will show what is underneath and it aint pretty!