Just saying.......
One option that needs to be considered  is to keep FTA funding while saving the city bilions by reclassifying the rail project into a BRT project.
The city keeps FTA funding with the reclassification to BRT.
The city saves millions and millions from avoiding yearly rail operations maintenance cost which accumulates to billions over the years. 
There won't be a need for constructing 21 expensive rail stations as well as adding buses to the bus fleet to bring passengers to rail stations.
There won't be a need for a new electric plant to generate electricity to run the trains.
There won't be need for steel rails. And existing stocks could be sold as scrap iron. And the trains sold to Asian cities with rail system.
Dissolving HART saves millions yearly as well as avoid the expense on expansion of the rail system.