I personally think it is very unlikely to have S7 kits ever.
So we should start with what we have.

For this project to be successful we need:
1. Remove safely all the heat sinks at least from the side with chips
2. One S7 will require 2 water blocks, or 3 water blocks for 2 x S7. I'm working on this right now. I'm, pretty sure my S7 water block will be lighter and higher quality that C1 water blocks.
3. Other water cooling parts are required, but they are available everywhere

But there is still point 1, this miner is expensive, damaging even a single chip will probably affect an entire array of chips which will affect significantly the hash rate.

Any ideas how to safely remove the heat sinks from chips?