The Peanut appears to be a bit narrower. I guess that makes it cost more.
I've chatted with the folks from Amahi at Summer NAMM a couple of times. They are very friendly, say they do setups, and my wife got good service from them. There is a phone number and email address on the bottom of their Webpage. I'd send an email or make a call to have your question answered definitively. They also have a FaceBook page you could use to ask.