Camelot Pro is a very useful tool for live performance and covers hardware integration very well. The PC version is able to integrate VSTs the iPad Version AudioUnits.
Maybe there is a way to combine this with unify. Therefore you don’t have to invent the wheel again for several points.
Several people are using Unify together with long-established live hosts including Camelot, Cantabile, Gig Performer, etc. This can work very well, especially if you already own those programs and are used to its work-flow.