Hey Mean,
If you really love the .270 thenjust add another rifle, but if the .270 is just another rifle to you, I'd recommend selling it and adding the 7mm-08 to the mix. Looks like it would fit in rather nicely. Nothing wrong with the .270 though, you just don't really need IMHO a 7mm-08 with the mix you already have. Not to throw a wrench into things, but if the .308 parent cartridge is really what you are after, stuff a .243 in with your other guns, and keep 'em all. Out here in Idaho, the .243 or any of the fast .22's are the preferred coyote fodder.