So your suggestion is to obtain the break-out from the title company
Yes.
and if it's not available, count the full $20 to the flood company as a PPFC (since LOL of included and I don't know the breakout)?
No. You need the break down. The flood vendor is not the ultimate receiver of the $20.
If the title company will not furnish the information so you can comply with RESPA then I would be changing my business, regardless how "good" a customer they are.
BTW, if you are giving them the flood business in anticipation of any referrals or because of their business then you have a potential Sec. 8 violation. Note I said potential because I don't know the full extent of the situation, other than it's sitting on a powder keg.