Okay I gotta wade in here. As much as I love learning and playing with a Dremel Tool, it can get rewarding and also get sloppy.
If you really cannot find a set of 223 bottom metal in factory painted aluminum, I can sell you a set and a black SPS stock for $100 and mailing. That way you keep your ADL factory original and recover some money out of this so called upgrade to you. Doing the work yourself is fun but it devalues that ADL set up that someone out there will Happily pay you for.... ADL related kit can be pricey at the best of times because it’s so rare to find these days. I do realize that I have made mistakes and fzcked up some nice stocks in the past in the name of learning and upgrading. Anyways if this arrangement can be of help, I’m happy to assist. If you wanna have at this learning project.... then by all means Dremel away!!
Cheers, Barney