Yes, use the non Nautilus BVC heads. You won't have to shorten the center pin, I found a work around. If you still have your eGrip heads lying around, pull out the metal center pin from those and replace the metal pin in the BVC coils with them. The pin will be kind of loose inside the BVC head so make sure it doesn't fall out when you turn it over. If you want to go a tiny step further and make sure that doesn't happen, you can pull out the white rubber gasket thingy inside the eGrip head and replace the BVC one with that, just make sure the coil doesn't get pulled out and that you insert the gasket correctly (with one wire inside the gasket and one on the outside touching the metal part). You will be able to fit the BVC head onto the eGrip base now, only thing is that the coil base will not screw into the mod completely. It will screw in like 90% of the way and protrude a tiny bit but it will still work.
I just popped in a new BVC head myself, it's vaping great for me this way. I tried to modify the eGrip head the other day and pull out one of the layers of the wick but I still think the BVC heads perform better.
Here's a pic of how far it sticks out. It will still sit upright but wobble a little. You can use one of those charge port covers and it will balance out the other side and not wobble.