LifePo4 deep cycle batteries that are used for house batteries generally have a discharge rate around "1 to 2 C" which is a way of saying a 12v 100ah LifePo4 has a max discharge in the 100 to 200 amp range. That is a long way away from the 800 to 1000 amps of a lead acid coach battery.
That said, there are LifePo4 starter batteries designed for the use you describe. Just like a real deep cycle lead acid isn't a great starter battery, the same holds true for LifePO4, the deep cycle versions are not good starter batteries.
Here is an example of a LifePO4 starter battery. Discalimer: I know nothing about this brand, I just found it as an example.