OP, I'd suggest looking at older mods to get what you're looking for -- there were a lot of people modding stuff for MW long before BB came out!
I don't know any graphical replacements you'd like for bodies and heads (you don't like the ones I use
) but there are a lot of good armor mods that use the vanilla meshes and thus work well with vanilla bodies. There are also a lot of older race mods that used the vanilla bodies as well. As for companions, while I don't know any modern ones that use vanilla heads, it doesn't take much work in the CS to change a companion's head to one you like better. I did that once with Julan when I was playing with a vanilla-heads-and-bodies game earlier this year, and I'm no great shakes with the CS. Poke around at some of the tutorials, poke around in the CS -- once you figure out how to make small changes like this, you'll be able to customize things that will suit your tastes. And if you ever feel really ambitious, head to http://lovkullen.net/Emma/grumpy.htm and look at Grumpy's Companion Project; it's a great place to start when one has the urge to try their hand at companion-making.
Hope this helps.