Sorry, but I've been trying to figure out what you're getting at for 4 days, but I'm drawing a blank.
Anyway... I did some experimenting with some dyes, finishes, and techniques.
Here, I took the original side that I dyes various colors to see how well the limba dyed and attempted to wetsand some linseed oil into it. It drew out the dye, never to return. OK... one down.
Here we have two things going on.
LEFT: I wetsanded the dye into the wood, then hit it with a very light coat of oil-based poly. That one looks OK, but the pores are still wide open.
RIGHT: I tried to mix some powdered dye into the linseed oil. Clearly, that one didn't work out very well. As all dyes that I know of are either water or alcohol based, and the oil is mineral spirit based, I really didn't think it'd work with either dye, but I really didn't have anything to lose.
See, my HOPE was to be able to mix the dye into the oil as Scott suggested. This could then be wetsanded onto the wood. The sludge would be forced into the pores through the process. As the linseed oil cured, the pores would be filled with the colored sanding dust and harden into a smooth surface.
It looks like more experimenting is in order. Unless something else works out, I'll probably dye the wood, then mix the remainder of the dye into some water-based poly and finish the body with that. I KNOW that one will work, and the color will look about a foot thick.
In the meantime....
The bevel looks lretty good. Remember that the body is only 1" thick, so the bevels are only 1/4" deep. It'll be fairly subtle, but it should show up well enough when the finish is buffed out.