I use carared for colour by itself it will give and dark amber-orange color, you have to add some roasted barley or similar to get that red colour. As inhousebrew said you con account it as a c-20 malt. I usually use carered as an 8% to 15% of my grain bill. You can use a little c-40 if you want to different crystal malts will give different layer of complexity wich are always welcome in a malt foward beer, use just a tiny little bit less carared and put some crystal 40 or 60 there it can be good. Anyway your recipe doesn´t look bad at all.
Hope this helps.