I saw the Napoleon kit in a store (Canadian Tire), and had a look.
The kit which I saw was labelled as Napoleon Caravan Connection Kit, and identified the manufacturer or supplier as "Wolf Steel". It was marked with "TQ285 / PRO285 / TQ285X*", which are apparently the compatible grill models.
First the good news...
While the Napoleon website image shows a strange quick-connect fitting on one end of the hose, the hose in the kit appeared to have a normal quick-connect which would be compatible with the outlet on an Escape.
While the other end of the hose in the Napoleon website image looked to me might it not be a normal 3/8" SAE flare swivel, the hose in the kit did appear to have this common fitting.
So the good news is that a common quick-connect to flare hose would work, and can be easily obtained without this specific kit.
Now the bad news...
as JeffinBC and MarkinVan explained, the kit also contains additional fittings and brackets (at least two brass fittings and one steel bracket). I couldn't see the fittings well enough through the packaging to determine what they were, but it's apparent that if you try to convert this stove by just removing the regulator and screwing on the hose, at the very least the hose components will not be properly supported, if the connection can be made at all.
The Napoleon website listing for the kit is lacking in details, but I found the manual:
The kit replaces the regulator and regulator bracket, which is why it includes a new bracket. One of the fittings is a bulkhead connector, which is a male-to-male flare fitting that is held in the bracket by a nut - that fitting would be reasonably available if it is the same SAE flare on both ends, but the bracket would need to be custom fabricated, and a bracket is absolutely required because the manifold flex hose will not support the supply hose.
The manual shows the manifold flex hose which was disconnected from the regulator being directly connected to the bulkhead fitting, so there is only one fitting (and the bracket and nut), but the kit I saw had two fittings, and neither was just a typical flare-to-flare bulkhead fitting. In the manual, the manifold flex hose side of the fitting appears to be smaller than the 3/8" SAE flare side, so this is presumably the impossible-to-find fitting that JeffinBC mentioned.