When it comes to logos it is a clash of two different platforms that I prefer to keep seperate. However, I think that Mega Arms does custom lowers for different companies such as Rainier Arms. I'm not sure if they would do a small batch of "COTEP lowers" but that may be worth a try.
http://www.megamachineshop.com/megaarms.php
I have a Rainier Arms RUC that uses their upper and lower that is made by Mega and let me tell you that the quality is top notch and the fit and finish is perfect.