All good points. Delro do a DNA version as well as a Dicodes. I'd wager the SXK DNA version works with escribe - their DNA BB clone does.
I was also wondering about replacing the 2200mAh lipo. Bigger capacity than the Delro so possibly not compatible with their 1900 mAh replacement batteries?
The Delro has an easy to use connector to replace theirs. Four screws and a five minute job. Clone should be the same.
As for lipo v 18650, I often use 2500 mah batteries in my BBs so for me the 2200mAh may not be a problem. Sounds like I'm talking myself into it.