brakes in rear sponge and no brakes plus lost 1/2 the fluid

Hello, sounds like you may have a physical brake fluid leak -- especially if the vehicle has lived it's 25 years of life in the "rust belt" of Indiana and the surrounding area. In any case, this is a job best left to the professionals -- such a big safety concern and also if it's a steel brake line leaking, not an easy repair. https://repairpal.com/repair-shops/ford-repair-and-service-in-goshen-indiana