Down for a swap — I'll test yours for the full period if you test mine back. I run a small app called PeerPlay built exactly for this (reciprocal testing for the 12-tester/14-day requirement), so if it's easier than coordinating manually feel free to add your app there instead and I'll pick it up. Otherwise happy to just do it directly here, whichever's less hassle for you.
https://play.google.com/store/apps/details?id=com.testerhub.app