Sure.
MFP voting for a Pheu Thai candidate for PM will mean that no senate votes are required. 238 Pheu Thai coalition+150 MFP = 388.
As for the cabinet, there will be no need for the military backed parties,
according to Pheu Thai. They reckon they will garner enough support in the house to pass legislation. Even MFP may vote in favour of Pheu Thai legislation if it aligns with their own thinking.