I used pockets with DD1 at childcare, my childminder came around to the idea but our real breakthrough was when she agreed to try our MEOs one day as the pocket inserts hadn't dried in time. Response that evening was "wow, can I use these instead, they are SO much better!" (this was a few years ago now)..
Another childminder made my blood boul when she told me she thought our cloth nappies smelt (checked with 3 other non cloth using mums and they thought they didn't, CM was just trying to get us to use sposies. Changed childminders shortly afterwards and the new one was fine with them!
So make it a simple set of AIOs/AI2s/pockets and they should be fine with it. I used to send a bucket rather than a mesh bag as they felt it was all better contained.