The 94 tactical is pretty easy to install. Remove the aperture, use the two supplied screws to mount the sight to the rear two sight mounting holes on top of the receiver, adjust windage, adjust elevation, replace the aperture.
Front sights are always a "maybe" I shot a Guide gun with a tactical today and it was on with the factory supplied front sight.
Front sight installation is pretty straight forward. We leave the dovetail a few thousandths oversize to accomodate some of the larger dovetails encountered. Using a triangular file remove some metal off one slope of the sight dovetail till the sight just starts into the slot. Press or tap into place with a brass punch or wood / plastic dowel.