Is it possible to have all these great mods working together in harmony?

After doing much googling, Nexus comment digging and so on I can't seem to find the answer.

Ideally I would like all followers from Vanilla, Interesting NPCS and any separate popular companion mods such as Vilja, Valfar and Hoth to use all of the functionality of UFO (such as inventory management, essential/mortal toggle) whilst all using convenient horses (everyone grabs their horse when the horn is blown).

That would be cool.

Also, on a side note, is there any way to actually buy the horses for your followers using convenient horses, to make it a little more burdensome?

Thanks for anyone who can kick some knowledge