I am really sorry, I usually do not get involved in any confrontation on the blockchain, and I know you have a difficult situation. BUT I do not think you are acting correctly here.
You clearly state that 4777.7 STEEM has been donated to the project. That should really have been in a separate earmarked account.
Regardless of the separate account it is that 4777.7 STEEM that gained your account the equivalent amount in HIVE. It therefore is quite obvious that that HIVE should be allocated to the project otherwise you have personally gained from the charitable donations that people have made. The ethics of that are clearly questionable.
Therefore the total funds for the project should be...
4777.7 STEEM x 0.151 USD/STEEM = 721.43 USD
4777.7 HIVE x 0.243 USD/HIVE = 1160.98 USD
TOTAL = 1882.41 USD
That is more than enough for the pump for 
This does not look good in any way.
RE: The surprise fork of STEEM to HIVE is an opportunity to complete the [ Mission: Agua-Possible ] project!