Gah, what a shame... The plus is that with care and cleaning, I bet that equipment can be brought back.
Not a big fan of the content of the station, but still sad to see the flood damage to radio gear.
Nothing a good bath in the kitchen won't take care off and just lay it out in the sun for a good soak.That equipment is pretty much all toast. The tuning unit mounted on the tower will be OK after cleaning but the transmitter and anything associated with it are toast. The transformers will never dry out and the dirty water will have contaminated everything. Cheaper and easier to purchase new gear. If the TX was given to someone that wanted to spend the time and effort they could recover a lot of components but transformers and relay coils etc. would need to be replaced. You may get lucky and be able to bake the moisture out but I would never trust it in a high voltage situation. It's far more trouble and cost then it is worth to try and recover things and it could never be done quicker than replacing them. Most broadcast transmitter manufacturers have something they can at least loan/rent out for emergencies like this.