It would be very feasible, as long as you know where the kernel sources are (and since there is a Fedora build for it, this should not be a problem). Just follow the porting guide and it will show up as new device in pmbootstrap: https://wiki.postmarketos.org/wiki/Porting_to_a_new_device
Regarding touch-friendlieness: users can also pick user interfaces that are not optimized for touch input during the installation, such as xfce4, mate, i3wm.