This looks really good, and I look forward to trying it out. But be aware that GMs are going to have to add Perception, Knowledge & Influence Attributes (I get the impression you really don’t want us to, but we’ll need them for effective gameplay). Best to accept that and integrate it.
You really don't need to. You can do those things using the existing skill system if you need to. Just make a 3d6 roll under the difficulty you decide (i.e., for checking if they know stuff: 17 for common knowledge, 12-4 for less well known stuff, 6-8 for very esoteric subjects).
Or you could just give them the information because it's more fun.